muscle and nervous tissue/tissue changes and aging

What are muscle cells called?

A: Myocytes or muscle fibers.

Q: What are the 3 types of muscle tissue?

Skeletal, cardiac, and smooth.

Q: Is skeletal muscle voluntary or involuntary?

A: Voluntary.

Is skeletal muscle striated or nonstriated?

Striated

Q: Is cardiac muscle voluntary or involuntary?

Involuntary

Q: Where is cardiac muscle found?

A: In the wall of the heart

Is smooth muscle striated?

No

Q: Where is smooth muscle found?

A: Walls of most internal organs.

Q: What are the two types of nervous tissue cells?

Neurons and glial cells.

Q: What do neurons do?

Initiate and conduct electrical activity.

What do glial cells do?

Support and protect neurons.

What is hypertrophy?

Increase in the size of existing cells.

What is hyperplasia?

Increase in the number of cells.

What is neoplasia?

Out-of-control growth that forms a tumor.

Q: What is atrophy?

Shrinkage of tissue due to decreased cell size or number.

What is metaplasia?

A change from one mature epithelial cell type to another