Podcast
Questions and Answers
Actin are found within which muscle types? (Select all that apply)
Actin are found within which muscle types? (Select all that apply)
- Skeletal (correct)
- Smooth (correct)
- Cardiac (correct)
- None of the above
Sarcomeres are found within which muscle types? (Select all that apply)
Sarcomeres are found within which muscle types? (Select all that apply)
- Skeletal (correct)
- Smooth
- Cardiac (correct)
- None of the above
Mitochondria are found within which muscle types? (Select all that apply)
Mitochondria are found within which muscle types? (Select all that apply)
- Skeletal (correct)
- Smooth (correct)
- Cardiac (correct)
- None of the above
Ribosomes are found within which muscle types? (Select all that apply)
Ribosomes are found within which muscle types? (Select all that apply)
Intermediate filaments are found within which muscle types? (Select all that apply)
Intermediate filaments are found within which muscle types? (Select all that apply)
Myosin are found within which muscle types? (Select all that apply)
Myosin are found within which muscle types? (Select all that apply)
Which statement below is NOT a characteristic of epithelia?
Which statement below is NOT a characteristic of epithelia?
Which type of cell junction is also referred to as an anchoring junction?
Which type of cell junction is also referred to as an anchoring junction?
The lateral surfaces of epithelial cells are characterized by _____?
The lateral surfaces of epithelial cells are characterized by _____?
Has a supportive connective tissue layer beneath the basal surface is the same in all epithelia.
Has a supportive connective tissue layer beneath the basal surface is the same in all epithelia.
Number of cell layers found in an epithelium is the same in all epithelia.
Number of cell layers found in an epithelium is the same in all epithelia.
Has nervous innervation is the same in all epithelia.
Has nervous innervation is the same in all epithelia.
A lack of blood vessels running through the epithelium is the same in all epithelia.
A lack of blood vessels running through the epithelium is the same in all epithelia.
Is only found lining a body cavity is the same in all epithelia.
Is only found lining a body cavity is the same in all epithelia.
Cell shapes is the same in all epithelia.
Cell shapes is the same in all epithelia.
Can regenerate itself is the same in all epithelia.
Can regenerate itself is the same in all epithelia.
Always has a distinct apical surface is the same in all epithelia.
Always has a distinct apical surface is the same in all epithelia.
Has cilia is the same in all epithelia.
Has cilia is the same in all epithelia.
Types and numbers of cell-to-cell contacts is the same in all epithelia.
Types and numbers of cell-to-cell contacts is the same in all epithelia.
What type of epithelial tissue lines the alveoli (air sacs) of the lungs?
What type of epithelial tissue lines the alveoli (air sacs) of the lungs?
What is the primary function of this epithelial type?
What is the primary function of this epithelial type?
What characteristic of this epithelial tissue type makes it good at what it does but also makes it susceptible to damage from mechanical forces such as abrasion from asbestos?
What characteristic of this epithelial tissue type makes it good at what it does but also makes it susceptible to damage from mechanical forces such as abrasion from asbestos?
In which layer of the skin are sebaceous glands located?
In which layer of the skin are sebaceous glands located?
Which skin structures function in temperature regulation?
Which skin structures function in temperature regulation?
Identify the tissue types that make up the layers of the skin from superficial to deep.
Identify the tissue types that make up the layers of the skin from superficial to deep.
In Connective Tissue Proper, which cell type secretes the fiber matrix?
In Connective Tissue Proper, which cell type secretes the fiber matrix?
Which major classes of connective tissues contain collagen?
Which major classes of connective tissues contain collagen?
Which of the following are subtypes of Connective Tissue Proper?
Which of the following are subtypes of Connective Tissue Proper?
Which of the following are subtypes of Loose CT?
Which of the following are subtypes of Loose CT?
Which of the following are the major types of cartilage?
Which of the following are the major types of cartilage?
What characteristic distinguishes a loose CT from a dense CT?
What characteristic distinguishes a loose CT from a dense CT?
Which of the following best describes the way in which epithelial tissues are characterized?
Which of the following best describes the way in which epithelial tissues are characterized?
What is the function of Simple squamous?
What is the function of Simple squamous?
What is the function of Stratified squamous?
What is the function of Stratified squamous?
What is the function of Simple cuboidal?
What is the function of Simple cuboidal?
What is the function of Stratified cuboidal?
What is the function of Stratified cuboidal?
What is the function of Simple columnar?
What is the function of Simple columnar?
What is Dense connective tissue?
What is Dense connective tissue?
What are some types of Dense CT?
What are some types of Dense CT?
What is Loose Connective Tissue?
What is Loose Connective Tissue?
What are some types of Loose CT?
What are some types of Loose CT?
What is the role of loose CT?
What is the role of loose CT?
What is the role of Dense CT?
What is the role of Dense CT?
What is Bone made up of?
What is Bone made up of?
What is blood used for?
What is blood used for?
What does cartilage do?
What does cartilage do?
What are some qualities of Epithelial tissue?
What are some qualities of Epithelial tissue?
What are some qualities of Connective tissue?
What are some qualities of Connective tissue?
Melanocytes are incorrectly shown, scattered throughout multiple epidermal layers and should only be in the stratum basale layer.
Melanocytes are incorrectly shown, scattered throughout multiple epidermal layers and should only be in the stratum basale layer.
The hair follicle is incorrectly shown in the epidermis and should extend into the dermis.
The hair follicle is incorrectly shown in the epidermis and should extend into the dermis.
The dendritic cell (Langerhans' cell) is incorrectly drawn in the stratum basale and should be located in the stratum spinosum.
The dendritic cell (Langerhans' cell) is incorrectly drawn in the stratum basale and should be located in the stratum spinosum.
The Merkel cell is incorrectly shown in the stratum spinosum and should be in the stratum basale.
The Merkel cell is incorrectly shown in the stratum spinosum and should be in the stratum basale.
The neuronal fiber is incorrectly shown as innervating a Merkel cell and it should be innervating a Langerhans' cell.
The neuronal fiber is incorrectly shown as innervating a Merkel cell and it should be innervating a Langerhans' cell.
Cells are incorrectly shown flattening as they are closer to the skin surface and should remain the same shape throughout the entire epidermis.
Cells are incorrectly shown flattening as they are closer to the skin surface and should remain the same shape throughout the entire epidermis.
What are some characteristics of Hyaline Cartilage?
What are some characteristics of Hyaline Cartilage?
What are some characteristics of Elastic Cartilage?
What are some characteristics of Elastic Cartilage?
What are some characteristics of Fibrocartilage?
What are some characteristics of Fibrocartilage?
If a blood vessel in the central canal burst, could a red blood cell (7um in diameter) enter the canaliculi of compact bone? Explain why or why not.
If a blood vessel in the central canal burst, could a red blood cell (7um in diameter) enter the canaliculi of compact bone? Explain why or why not.
Based on the previous answer, what can you deduce about the relationship between the structure of compact bone and its blood supply?
Based on the previous answer, what can you deduce about the relationship between the structure of compact bone and its blood supply?
What is the relative strength of an osteoporosis bone compared to a normal bone?
What is the relative strength of an osteoporosis bone compared to a normal bone?
What is the relative strength of an osteomalacia bone compared to a normal bone?
What is the relative strength of an osteomalacia bone compared to a normal bone?
Which of the following describes an osteoporosis bone?
Which of the following describes an osteoporosis bone?
Which of the following describes an osteomalacia bone?
Which of the following describes an osteomalacia bone?
Which of the following describes the mechanism of osteoporosis?
Which of the following describes the mechanism of osteoporosis?
Which of the following describes the mechanism of osteomalacia?
Which of the following describes the mechanism of osteomalacia?
What does Skeletal muscle look like?
What does Skeletal muscle look like?
How are the epimysium and tendons related?
How are the epimysium and tendons related?
What function is associated with skeletal muscle cells?
What function is associated with skeletal muscle cells?
Identify what structures in a skeletal muscle will shorten in length during contraction of the muscle.
Identify what structures in a skeletal muscle will shorten in length during contraction of the muscle.
Intercalated discs are found within which muscle types?
Intercalated discs are found within which muscle types?
Striations are found within which muscle types?
Striations are found within which muscle types?
Muscles that are over a foot in length exist within which muscle types?
Muscles that are over a foot in length exist within which muscle types?
Study Notes
Epithelial Tissue Characteristics
- Epithelia lack blood vessels and are therefore not vascularized; they rely on diffusion for nutrient supply from underlying connective tissue.
- Desmosomes serve as anchoring junctions between adjacent epithelial cells, allowing flexibility and movement.
- Specialized cell junctions, such as tight junctions and gap junctions, are found on the lateral surfaces of epithelial cells.
- Features such as nervous innervation, absence of blood vessels, and regeneration capabilities are consistent across all epithelial types.
- Variability in features like the number of cell layers, cell shapes, and presence of cilia exists depending on the specific type and location of epithelium.
Types of Epithelial Tissue
- Simple squamous epithelium is found lining alveoli and is primarily for diffusion.
- Stratified squamous epithelium provides protection against abrasion due to multiple layers of cells.
- Simple cuboidal epithelium aids in secretion and absorption while allowing for rapid diffusion.
- Simple columnar epithelium is specialized for absorption and secretion, featuring a high level of activity in these processes.
Skin and Connective Tissue
- Sebaceous glands are located in the reticular layer of the dermis, associated closely with hair follicles.
- Eccrine sweat glands and vascular plexuses in the skin play key roles in temperature regulation.
- Layers of skin consist of keratinized stratified squamous epithelium (epidermis) and a dermis made of areolar and dense irregular connective tissue.
Connective Tissue Types
- Connective Tissue Proper includes Loose and Dense subtypes.
- Loose connective tissue, such as areolar and adipose, has fewer fibers and more ground substance, allowing for flexibility and cushioning.
- Dense connective tissue contains tightly packed collagen fibers, providing strong structural reinforcement in ligaments and tendons.
- Major types of cartilage include fibrocartilage, elastic, and hyaline, each serving unique functions and located in specific regions of the body.
Bone and Blood
- Bone comprises organic and inorganic materials within its extracellular matrix to provide structural integrity.
- Blood serves as a fluid medium for the transport of gases and nutrients throughout the body.
Muscle Tissue Characteristics
- Skeletal muscle fibers are long and capable of contraction through filament sliding mechanisms.
- Cardiac muscle features intercalated discs, facilitating coordinated contractions.
- Striated muscle types include cardiac and skeletal muscle, while smooth muscle lacks striations.
Pathology
- Osteoporosis results in weaker bones with a honeycomb structure due to the rapid breakdown by osteoclasts compared to osteoblast activity.
- Osteomalacia is characterized by a softening of bones due to insufficient calcium, making them pliable and more susceptible to bending.
Cell Components in Muscles
- Skeletal, cardiac, and smooth muscles contain actin and myosin, essential for contraction.
- Mitochondria are present in all muscle types, highlighting their energy requirements for sustained function.
- Ribosomes are found in skeletal and smooth muscles, supporting protein synthesis necessary for muscle repair and growth.
Additional Facts
- Melanocytes, which produce skin pigment, should reside in the stratum basale layer, not scattered throughout other epidermal layers.
- Muscle contraction results in the shortening of muscle fibers, fascicles, myofibrils, and sarcomeres, driving movement and force generation.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of key concepts in anatomy with these flashcards for Exam 1. Focus on the characteristics of epithelial tissue and distinguish between correct and incorrect statements. Perfect for review before your anatomy test.
