Human Biology Study Guide 3

Name three functions of integumentary system.



What is the function of melanocytes?

What is the function of keratin?

What is the hypodermis made of?

What is the purpose of sebum?

What is the function of erector pili muscles?

What are nails composed of?

What is hair composed of?

What is found in the dermis?

How is skin color determined?

What is the function of an osteoclast?

What is the purpose of canaliculi?

Define diaphysis

Define epiphysis

Define metaphysis

What is the periosteum of a bone?

What makes spongy bone different from compact bone?

What is the difference between yellow marrow and red marrow?

How does bone remodeling respond to an increase in stress? A decrease in stress

How are muscle fibers arranged to form a muscle?

What is the function of myoglobin?

Define actin

Define titin

Define myosin

Describe M, and Z lines

What is a sarcolemma?

What is the function of a T-tubule?

What is the function of the sarcoplasmic reticulum?

Which portion of a nerve cell sends messages to other cells?

What substance covers nerve cells in order to speed nerve conduction?

Is the inside of a nerve cell electrically positive or negative when the cell is resting?

Is the inside of a nerve cell electrically positive or negative when a nerve impulse is passing through that section?

What ion moves into the portion of a nerve cell that has a nerve impulse passing through it?

What are the two parts of the nervous system?

What are the three functions of the nervous system?

What are the three portions of a synapse?

Name the five steps in a reflex arc.

Describe the shape of adipose cells.

What is the function of red blood cells?

What is the function of white blood cells?

What is the ground substance of blood?

What ground substance, protein fibers and cells are found in cartilage?

What ground substance, protein fibers, and cells are found in bone?

Define Haversian system

What is found in the central canal of bone?

What is the function of a neuron?

What characteristic of nervous tissue makes it different than other types of tissue?

What characteristic of muscle tissue makes it different than other types of tissue?

Compare cardiac, smooth, and skeletal muscles with regard to
a. Number of nuclei
b. Whether they are consciously or unconsciously controlled
c. Striations
d. branching