Epithelial
What type of epithelium is found in the alveoli?
Simple squamous epithelium.
What is the most abundant tissue in the body?
Connective tissue.
What type of muscle is striated and voluntary?
Skeletal muscle.
What is the basic unit of the nervous system?
Neuron.
What type of gland secretes hormones directly into the bloodstream?
Endocrine glands.
What is the main function of simple cuboidal epithelium?
Secretion and absorption.
What are the three types of fibers found in connective tissue?
Collagen fibers, reticular fibers, and elastic fibers.
Where is cardiac muscle primarily located?
In the heart.
What are the two main types of nerve cells?
Neurons and glial cells.
What do exocrine glands secrete their products into?
Ducts (tubes).
Name the classification of epithelium that appears to have multiple layers but is actually one.
Pseudostratified columnar epithelium.
Name the two types of bone tissue.
Compact bone and spongy bone.
What is the main function of smooth muscle?
To contract and regulate the flow of substances in hollow organs.
What is the purpose of synapses in the nervous system?
To transmit nerve impulses between neurons.
Name a type of endocrine gland.
Pituitary gland, thyroid gland, pancreas, ovaries, or adrenal glands.
Which type of epithelium is found in the epidermis of the skin?
Stratified squamous epithelium.
What is the function of adipose tissue?
Store fat and provide insulation.
How do skeletal muscles increase in size?
Through hypertrophy in response to increased workload.
How do dendrites and axons differ in function?
Dendrites receive signals; axons transmit signals away from the cell body.
What is the function of goblet cells?
To secrete mucus.
What are cilia and microvilli?
Cilia are hair-like structures that sweep debris, while microvilli are tiny projections that increase surface area for absorption.
What type of connective tissue is found in the spleen?
Loose reticular connective tissue.
What are intercalated discs?
Junctions between cardiac muscle cells that allow rapid transmission of electrical impulses.
What is a neurotransmitter?
A chemical messenger that transmits signals across a synapse.
What is the difference between mucous and serous membranes?
Mucous membranes line structures with openings to the external environment, while serous membranes line body cavities that do not open to the external environment.