38 Questions
What type of fibers are found in dense connective tissue?
Collagen fibers
What is a primary function of dense connective tissue?
To transmit mechanical forces
What is the main location of the nucleus of fibroblast in dense connective tissue?
Dermis of skin
What is the arrangement of collagen fibers in dense connective tissue?
Either regularly or irregularly arranged
What is the main component of tendons and many ligaments?
Dense connective tissue
What is the scale of the light microscope image shown?
25 mm
What is the main function of simple cuboidal epithelium?
Secretion and absorption
Where can simple cuboidal epithelium be found?
Linings of kidney tubules and gland ducts
What is the shape of simple cuboidal epithelial cells when viewed from the side?
Short cylinder
What feature do some simple cuboidal epithelial cells have to aid in absorption?
Microvilli
What is the thickness of the simple cuboidal epithelium layer?
Single layer
What is the primary function of smooth muscle contraction in the digestive tract?
To move food through the digestive tract
What is the function of the microvilli in simple cuboidal epithelial cells?
To increase the surface area for absorption
What is the role of osteocytes in the bone matrix?
To maintain bone structure and communicate with each other
What is the shape of the cells in simple cuboidal epithelium when viewed in cross-section?
Cuboidal
What is the function of glial cells in nervous tissue?
To support and nourish neurons
What is the result of smooth muscle contraction in arterioles?
Increased blood pressure
What type of microscope is used to observe simple cuboidal epithelium?
Light microscope
What is a characteristic of bone matrix?
It is rigid and hard
What is the function of neurons in nervous tissue?
To transmit and receive signals
Where can smooth muscle be found?
In the walls of the uterus, blood vessels, and other internal organs
What is the function of cytoplasmic extensions in osteocytes?
To allow communication between osteocytes
In which type of tissue are reticular fibers the main component?
Reticular connective tissue
What is the primary function of adipose tissue cells?
To store and release fat for cellular respiration
What is the main component of the supportive skeleton in embryonic vertebrates?
Cartilage
Which type of tissue is specialized to contract and move the body?
Muscle tissue
What is the main function of lymph tissue?
To participate in immune functions
In which layer of tissue is adipose tissue commonly found?
Subcutaneous layer
What is the primary function of reticular connective tissue?
To provide a supporting internal framework
What replaces cartilage in most vertebrates during development?
Bone
What is a characteristic of cancer cells compared to normal cells?
They multiply chaotically and infiltrate normal tissues
Why do surgeons often have difficulty removing all malignant masses?
Because cancer cells spread rapidly and extensively
What is a requirement for solid tumors to grow?
Blood vessels to ensure delivery of nourishment and oxygen
What is a recommended dietary practice to reduce the risk of cancer?
Eating a healthy diet with fresh fruits, vegetables, and grains
What can happen to some tumors?
They enter a dormant stage
Approximately what percentage of cancer deaths are due to solid tumors?
85%
How do cancer cells interact with surrounding cells?
They infiltrate normal tissues
How many cases of skin cancer are reported in the United States each year?
Over two million
Study Notes
Simple Cuboidal Epithelium
- Found in linings of kidney tubules and gland ducts
- Functions include secretion and absorption
- Characterized by a single layer of cells with microvilli for absorption
- Cells appear as short cylinders in cross-section
Dense Connective Tissue
- Found in tendons, ligaments, and dermis of skin
- Functions include support and transmission of mechanical forces
- Composed of collagen fibers, which may be regularly or irregularly arranged
- Example image shows dense connective tissue with collagen fibers and fibroblast nuclei
Other Types of Tissue
- Reticular connective tissue forms a supporting internal framework in organs like the liver, spleen, and lymph nodes
- Adipose tissue stores fat and releases it when needed for cellular respiration
- Cartilage is the supporting skeleton in embryonic stages of vertebrates, but is often replaced by bone during development
- Bone is composed of a rigid matrix and osteocytes that communicate with each other through cytoplasmic extensions
Muscle Tissue
- Smooth muscle occurs in the walls of the digestive tract, uterus, blood vessels, and other internal organs
- Contraction of smooth muscle is necessary for certain functions, such as moving food through the digestive tract
- Contraction of smooth muscle in arterioles raises blood pressure
Nervous Tissue
- Consists of neurons and glial cells
- Neurons are specialized for receiving and transmitting signals
- Glial cells support and nourish neurons, destroy pathogens, and modulate transmission of impulses
Cancer
- Cancer cells divide rapidly and in an uncontrolled way
- Unlike normal cells, cancer cells do not respect boundaries and form tissues in an orderly manner
- Solid tumors require blood vessels to ensure delivery of nourishment and oxygen
- Healthy diet and lifestyle habits can help prevent cancer
This quiz covers the structure and main locations of simple cuboidal epithelium, including the nuclei of cuboidal epithelial cells and the lumen of tubules.
Make Your Own Quizzes and Flashcards
Convert your notes into interactive study material.
Get started for free
