Module 3

Question 1

Central nervous system

Answer 1

Holds brain and spinal cord

Question 2

Peripheral nervous system

Answer 2

Nerve network
- Sensory (afferent) division: carries signals from nerve endings to CNS

Question 3

Spinal nerves

Answer 3

31 pairs
8 cervical, 12 thoracic, 5 lumbar, 5 sacral, 1 coccygeal

Question 4

Servers pain down back leg due to nerve injury

Answer 4

Sacral plexus

Question 5

Left hemisphere

Answer 5

Controls right motor side of body

Question 6

Taste buds

Answer 6

Taste buds send impulses to the brain by 3 cranial nerves: facial, glossopharyngeal, and vagus

Question 7

How is smell triggered

Answer 7

Odor molecules bind to cilia going to olfactory receptor cells

Question 8

Where is structure of hearing

Answer 8

Inner ear holds the cochlea

Question 9

Cochlea nerve

Answer 9

Ripples of perilymph travel to organ of corti

Question 10

Accommodation

Answer 10

Curvature of lens changing to allow eye to focus on near object

Question 11

Pineal gland

Answer 11

Produces melatonin

Question 12

Calcitonin

Answer 12

Affects bones

Question 13

Pituitary gland

Answer 13

Influences more body processes than any other endocrine gland

Question 14

Steroid hormones

Answer 14

Penetrates cell membrane and binds to receptors

Question 15

Thyroid

Answer 15

Hormone stimulates metabolism and increases warmth