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Questions and Answers
What is the primary function of hyaline cartilage?
What is the primary function of hyaline cartilage?
- Elastic support with rebound capabilities
- Low frictional surface with cushioning (correct)
- Dense structure allowing for bone attachment
- Support and resistance to compression
Which type of cartilage is characterized by a fibrous matrix and is located in the external ear?
Which type of cartilage is characterized by a fibrous matrix and is located in the external ear?
- Articular cartilage
- Hyaline cartilage
- Fibrocartilage
- Elastic cartilage (correct)
Which process describes the growth of new cartilage at the surface of existing cartilage?
Which process describes the growth of new cartilage at the surface of existing cartilage?
- Endochondral ossification
- Perichondrial expansion
- Appositional growth (correct)
- Interstitial growth
How does hyaline cartilage’s composition affect its ability to repair?
How does hyaline cartilage’s composition affect its ability to repair?
What is the role of aggrecan in hyaline cartilage?
What is the role of aggrecan in hyaline cartilage?
Where is the matrix of hyaline cartilage predominantly found?
Where is the matrix of hyaline cartilage predominantly found?
What happens to the flexibility of joints associated with hyaline cartilage as people age?
What happens to the flexibility of joints associated with hyaline cartilage as people age?
Which of the following best describes interstitial growth of cartilage?
Which of the following best describes interstitial growth of cartilage?
What is the primary function of cilia in apical epithelial modifications?
What is the primary function of cilia in apical epithelial modifications?
Which of the following is NOT a main component of connective tissue?
Which of the following is NOT a main component of connective tissue?
Which connective tissue cell type is primarily involved in the immune response?
Which connective tissue cell type is primarily involved in the immune response?
What is the shape and characteristics of fibroblasts in connective tissue?
What is the shape and characteristics of fibroblasts in connective tissue?
Which statement about mesoglea is accurate?
Which statement about mesoglea is accurate?
Which type of dye is typically used to attach to positively charged areas in cells?
Which type of dye is typically used to attach to positively charged areas in cells?
Identify the characteristic of adipose cells in connective tissue.
Identify the characteristic of adipose cells in connective tissue.
In the context of connective tissue, what does ECM stand for?
In the context of connective tissue, what does ECM stand for?
What is the primary function of tight junctions in the retina?
What is the primary function of tight junctions in the retina?
What type of junction is responsible for linking cells to the basement membrane?
What type of junction is responsible for linking cells to the basement membrane?
Which proteins are primarily involved in the formation of tight junctions?
Which proteins are primarily involved in the formation of tight junctions?
What is the role of gap junctions in the intercellular environment?
What is the role of gap junctions in the intercellular environment?
Which junction is primarily involved in anchoring cells together with intermediate filaments?
Which junction is primarily involved in anchoring cells together with intermediate filaments?
Which statement correctly describes the function of anchoring junctions?
Which statement correctly describes the function of anchoring junctions?
The terminal bar is associated with which of the following?
The terminal bar is associated with which of the following?
How do cadherins in anchoring junctions regulate their binding?
How do cadherins in anchoring junctions regulate their binding?
What is a major characteristic of gap junctions?
What is a major characteristic of gap junctions?
What role do CAMs (cell adhesion molecules) play in cellular junctions?
What role do CAMs (cell adhesion molecules) play in cellular junctions?
What is the primary role of chondrocyte proliferation in bone development?
What is the primary role of chondrocyte proliferation in bone development?
Which zone of the epiphyseal growth plate is characterized by the presence of normal hyaline cartilage?
Which zone of the epiphyseal growth plate is characterized by the presence of normal hyaline cartilage?
What occurs during intramembranous ossification?
What occurs during intramembranous ossification?
What percentage of blood volume is composed of plasma?
What percentage of blood volume is composed of plasma?
In the context of bone remodeling, what role do osteoblasts and osteoclasts play?
In the context of bone remodeling, what role do osteoblasts and osteoclasts play?
Which of the following components is NOT found in blood plasma?
Which of the following components is NOT found in blood plasma?
Where is the hematopoietic marrow primarily located during bone development?
Where is the hematopoietic marrow primarily located during bone development?
Which zone of the epiphyseal growth plate is characterized by chondrocytes becoming larger?
Which zone of the epiphyseal growth plate is characterized by chondrocytes becoming larger?
What is the primary function of catecholamines released from the adrenal medulla?
What is the primary function of catecholamines released from the adrenal medulla?
Which hormone is secreted by the parafollicular cells of the thyroid gland?
Which hormone is secreted by the parafollicular cells of the thyroid gland?
What triggers the stimulation of exocytosis in the adrenal medulla?
What triggers the stimulation of exocytosis in the adrenal medulla?
What is the primary function of follicular cells in the thyroid gland?
What is the primary function of follicular cells in the thyroid gland?
How does parathyroid hormone (PTH) primarily affect calcium levels in the blood?
How does parathyroid hormone (PTH) primarily affect calcium levels in the blood?
What structure connects the two lobes of the thyroid gland?
What structure connects the two lobes of the thyroid gland?
Which statement best describes the secretion of melatonin from the pineal gland?
Which statement best describes the secretion of melatonin from the pineal gland?
What type of cells in the adrenal medulla are responsible for secreting norepinephrine and epinephrine?
What type of cells in the adrenal medulla are responsible for secreting norepinephrine and epinephrine?
Which hormone acts to suppress osteoclast activity and lower blood calcium levels?
Which hormone acts to suppress osteoclast activity and lower blood calcium levels?
What is the role of retinohypothalamic tract in the pineal gland's function?
What is the role of retinohypothalamic tract in the pineal gland's function?
What is the primary action of the hormone released by the chief cells in the parathyroid glands?
What is the primary action of the hormone released by the chief cells in the parathyroid glands?
Which component is crucial for thyroid hormone storage within the follicles of the thyroid gland?
Which component is crucial for thyroid hormone storage within the follicles of the thyroid gland?
Which hormone primarily acts to raise blood calcium levels through various methods?
Which hormone primarily acts to raise blood calcium levels through various methods?
What is the primary function of sebaceous glands?
What is the primary function of sebaceous glands?
Which layer of the skin contains both loose and dense connective tissue?
Which layer of the skin contains both loose and dense connective tissue?
What occurs to keratinocytes as they move up through the skin layers?
What occurs to keratinocytes as they move up through the skin layers?
What is the primary structural component of hair?
What is the primary structural component of hair?
Which layer of epidermis is characterized by a more basic pH?
Which layer of epidermis is characterized by a more basic pH?
What role do melanocytes play in hair structure?
What role do melanocytes play in hair structure?
Which region of the hair follicle is responsible for the active proliferation of cells?
Which region of the hair follicle is responsible for the active proliferation of cells?
Which type of sweat gland is primarily responsible for temperature regulation?
Which type of sweat gland is primarily responsible for temperature regulation?
What is the function of the arrector pili muscles?
What is the function of the arrector pili muscles?
The hypodermis is primarily composed of what type of tissue?
The hypodermis is primarily composed of what type of tissue?
What defines the papillary layer of the dermis?
What defines the papillary layer of the dermis?
Which layer of skin provides energy storage and insulation?
Which layer of skin provides energy storage and insulation?
What characteristic is unique to apocrine sweat glands?
What characteristic is unique to apocrine sweat glands?
Which component plays a critical role in the formation of the epidermal water barrier?
Which component plays a critical role in the formation of the epidermal water barrier?
Flashcards
Connective Tissue Components
Connective Tissue Components
Connective tissue is made of cells, fibrous components, and a ground substance.
Fibroblast Function
Fibroblast Function
Fibroblasts produce the fibers and ground substance of connective tissue.
Mast Cell Function
Mast Cell Function
Mast cells contain granules and play a role in the immune system.
Macrophage Function
Macrophage Function
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Adipose Cell Shape
Adipose Cell Shape
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Direct Attachment Dyes (Acidic)
Direct Attachment Dyes (Acidic)
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Direct Attachment Dyes (Basic)
Direct Attachment Dyes (Basic)
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Cilia vs. Microvilli
Cilia vs. Microvilli
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Cartilage Growth
Cartilage Growth
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Appositional Growth
Appositional Growth
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Interstitial Growth
Interstitial Growth
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Hyaline Cartilage
Hyaline Cartilage
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Elastic Cartilage
Elastic Cartilage
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Hyaline Cartilage Function
Hyaline Cartilage Function
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Elastic Cartilage Function
Elastic Cartilage Function
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Cartilage Composition
Cartilage Composition
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Tight Junctions
Tight Junctions
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Zonula Adherens
Zonula Adherens
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Desmosomes
Desmosomes
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Gap Junctions
Gap Junctions
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Cell Adhesion Molecules (CAMs)
Cell Adhesion Molecules (CAMs)
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Basement membrane
Basement membrane
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Intercellular Bridges
Intercellular Bridges
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Junctional Complex
Junctional Complex
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Focal Adhesions
Focal Adhesions
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Hemidesmosomes
Hemidesmosomes
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Bone Growth: Lengthening
Bone Growth: Lengthening
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Bone Growth: Width
Bone Growth: Width
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Secondary Ossification Center
Secondary Ossification Center
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Bone Remodeling
Bone Remodeling
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Intramembranous Ossification
Intramembranous Ossification
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Blood Plasma: Proteins
Blood Plasma: Proteins
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Blood Plasma: Non-Proteins
Blood Plasma: Non-Proteins
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Hematocrit
Hematocrit
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Keratinocyte Layers
Keratinocyte Layers
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Epidermis' Hard Structure
Epidermis' Hard Structure
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What is the Dermis?
What is the Dermis?
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Papillary Layer Function
Papillary Layer Function
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Reticular Layer Function
Reticular Layer Function
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Hypodermis Function
Hypodermis Function
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Panniculus Adiposus
Panniculus Adiposus
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Panniculus Carnosus
Panniculus Carnosus
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Components of a Hair Follicle
Components of a Hair Follicle
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Hair Bulb Structure
Hair Bulb Structure
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Hair Growth Process
Hair Growth Process
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Nail Growth Source
Nail Growth Source
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Sebaceous Gland Function
Sebaceous Gland Function
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Eccrine Sweat Gland Function
Eccrine Sweat Gland Function
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Apocrine Sweat Gland Function
Apocrine Sweat Gland Function
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Adrenal Medulla Function
Adrenal Medulla Function
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Adrenal Medulla Structure
Adrenal Medulla Structure
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What controls the adrenal medulla?
What controls the adrenal medulla?
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Short-term stress response
Short-term stress response
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Long-term stress response
Long-term stress response
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Thyroid Gland Location
Thyroid Gland Location
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Thyroid Gland Structure
Thyroid Gland Structure
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What is a Thyroid Follicle?
What is a Thyroid Follicle?
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Follicular Cell Function
Follicular Cell Function
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Parafollicular Cell Function
Parafollicular Cell Function
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Parathyroid Gland Location
Parathyroid Gland Location
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Parathyroid Gland Function
Parathyroid Gland Function
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Pineal Gland Location
Pineal Gland Location
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Pineal Gland Function
Pineal Gland Function
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Melatonin Regulation
Melatonin Regulation
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Study Notes
ZOO 3000 Comparative Histology Notes
- Comparative Histology F course notes for the University of Guelph
- Studocu is not endorsed by any university
- Student downloaded notes from Studocu by Ethan Harvey ([email protected])
Lecture 1 (Thursday, September 10, 2020)
- Tissue (histos): Study (logos) of structure with microscopes
- Cytology: Study of cells (units of tissues and organs)
- Includes: Nucleus (genetic material), Cytoplasm (organelles), Cell membrane
- Tissues Include:
- Cells
- Intercellular substances (extracellular matrix, secreted by cells)
- Function: Strength, support, medium for diffusion
- Types: Fibrous support - polypeptide chains
- Collagen fibres (type 1 collagen) -Appear white -Insoluble after chemical treatment. -Synthesized by fibroblasts, chondrocytes & osteoblasts. -Assemble into self-assembled fibrils (extracellular). -Very strong due to covalent H-bonds between adjacent rows. -Present in extracellular matrix, especially connective tissues.
- Reticular fibers (type 3 collagen) -Net-like framework (reticulum) -Type III collagen (more sugar) -20nm fibers, branching -Stained with silver (argyrophilic) and PAS -Also synthesized and secreted by fibroblasts.
- Amorphous Intercellular Substance (ground substance)
- Viscous, clear fluid
- Medium for tissue fluid diffusion
- Tissue Fluid
- Contains proteins, glycoproteins, and carbohydrates
- Glycosaminoglycans: repeating disaccharide units.
- Proteoglycans
Lecture 2 (Ch.5 116-120, 133-161)
- Four Primary Tissues: Organized groups of cells for specific functions
- Epithelium: Covers surfaces, cavities, and glands; closely packed, minimal extracellular matrix.
- Connective: Supports and connects other tissues; widely separated cells with abundant extracellular matrix.
- Muscle: Generates force; elongated cells containing contractile proteins.
- Nervous: Transmits information; specialized cells and processes for communicating electrical impulses.
Lecture 3 (Ch.1 details about staining, Ch. 6 170-174, 190-201)
- Connective Tissue: most abundant and variable tissue type
- Includes: Blood, adipose, cartilage, loose, and dense tissue
- Components: Cells, fibrous components, and amorphous ground substance.
- Connective Tissue cells:
- Fibroblasts
- Plasma cells
- Macrophages
- Adipose Cells
Lecture 5 (Ch.7 p 210-219, Ch.8 p232-253)
- Cartilage and Bone
- Cartilage: Specialized connective tissue with a firm extracellular matrix that provides support.
- Types: Hyaline, elastic, fibrocartilage
- Development: Develops from mesenchyme that conenses to form intial skeletal structures
- Bone: Calcified tissue that provides support and protection.
- Types: Compact (dense) and spongy (cancellous)
- Cartilage: Specialized connective tissue with a firm extracellular matrix that provides support.
Lecture 6 (Ch.11, 336-365)
- Origins of Hematopoietic Organs
- Locations of origins vary by animal type, often associated with the gut.
- Stages of blood cell development: Erythocytes, thrombocytes (platelets), and granulocytes.
Lecture 7
- Muscle Tissues
- Types: Skeletal, cardiac, smooth. Skeletal muscles are striated and voluntary. Cardiac muscles are striated and involuntary. Smooth muscles are not striated and involuntary.
- Cardiac muscle is in the heart
- Muscle cells are attached via intercalated discs
Lecture 8
- Blood: Specialized type of connective tissue.
- Components: Plasma (liquid portion) and cells (erythrocytes, leukocytes).
- Functions include transport of oxygen, nutrients, waste, etc., and immune response
Lecture 9
- Blood vessels (arteries and veins)
- Layers: tunica intima, tunica media, tunica adventitia
- Blood vessel size relates to relative proportion of muscle, connective tissue and elasticity.
Lecture 10
- Connective Tissue proper: two types, loose and dense
- Components: Cells, fibers, and ground substance.
- Dense connective tissue: has high concentration of fibers like collagen and elastin, and less ground substance, providing good resistance to stretching, strength.
- Types: Dense regular connective tissue, dense irregular connective tissue and reticular tissue.
Lecture 11
- Organization of the peripheral nervous system (PNS)
- Somatic nervous system (voluntary control of skeletal muscles)
- Sensory afferents( from the periphery to the CNS)
Lecture 12
- Digestive System
- Components: Oral cavity, tubular digestive tract (esophagus, stomach, small intestine, large intestine) and associated glands.
- Tubular digestive tract (esophagus, stomach, small intestine, large intestine) have four layers: Mucosa, submucosa, muscularis externa, and serosa.
Lecture 13
-The small intestine is the longest part of the small intestine, has three sections (duodenum, jejunum, ileum)
- Cells include: Columnar absorptive cells, goblet cells, enteroendocrine cells and Paneth cells
- The large intestine (Cecum, Appendix, Colon, Rectum, Anal canal) absorbs water, ions, electrolytes. It has three layers of muscle: inner circuluar smooth muscle and outer longitudinal smooth muscle.
Lecture 14
- Digestive Glands
- Salivary glands: parotid, submandibular, and sublingual glands. These produce saliva, which contains water, mucin, enzymes.
- Features: Lobules, acini, ducts
Lecture 15
- Respiratory System -conducting portion: nose, pharynx, larynx, trachea, bronchii and bronchioles. -respiratory portion: alveolar ducts and sacs and alveoli. These structures are responsible for gas exchange between the blood and air.
Lecture 16
- Integumentary system summary
- The skin is composed of epidermis and dermis; epidermis is the outer layer composed of stratified squamous epithelium, while dermis is the inner layer composed of loose CT and dense CT. The hypodermis, below the dermis, is primarily composed of adipose, that is the subcutaneous tissue
Lecture 17
- Organs of Special Sense
- Nerves of skin: Free nerve endings, encapsulated nerve endings e.g. pacinian corpuscles, meissner's corpuscles, and ruffini's corpuscles
- The eye (retina and cornea)
- The ear (tympanic membrane, middle ear bones, cochlea, and semicircular canals).
Lecture 18
- Urinary System
- Kidney: Removes waste products from blood and regulates water and electrolyte balance.
- Anatomy: Renal corpuscle (filtration), tubules, collecting ducts.
- Kidney: Removes waste products from blood and regulates water and electrolyte balance.
- The kidneys have distinct functional parts, filtering, reabsorbing, and secreting. Urine is produced
Lecture 19
- Female Reproductive System:
- Structure: Divided into cortex and medulla and contains developing follicles
- Functions: Produce oocytes, hormones like estrogen and progesterone.
- Stages in ovarian follicle development from immature follicles to ovulation stages
- Fallopian tubes, uterus
Lecture 20
- Male Reproductive System
- Structure: Testis with seminiferous tubules and interstitial (Leydig) cells, Ductus epididymis, vas deferens, ejaculatory ducts, and urethra.
- Functions: Sperm production and delivery and hormone production (testosterone).
Lecture 21
- Endocrine System
- Hormones: Chemical messengers that act to regulate various metabolic processes in the body, produced in various types of cells.
- Target types: Endocrine, paracrine, autocrine.
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Description
Test your knowledge on the structure and functions of hyaline cartilage and other types of connective tissue. This quiz covers topics such as cartilage growth, composition, and the roles of various cells within connective tissue. Perfect for biology students looking to review key concepts.