Chapter 14 - Brain & Cranial Nerves (Lecture)

Question 1

name the 2 outermost parts of the brain.

Answer 1

Cerebrum
- for higher functions like thoughts, memory, intellect, etc.
- gyri (elevations), sulci (grooves), and fissures.
Cerebellum.
- body coordination and movement
- Arbor vitae

Question 2

what does the pineal gland secrete? what is another name for the pineal gland?

Answer 2

melatonin for sleep, regulates circadian rhythm.
the epithalamus

Question 3

what is the function of the thalamus?

Answer 3

purely sensory relay station, sexual

Question 4

what are the functions of the hypothalamus?

Answer 4

emotions, hormones, autonomic function

Question 5

what is the function of the pituitary gland?

Question 6

what is the midbrain mainly for?

Answer 6

mainly for sight and sound, and associated reflexes. maintains consciousness. cranial nerves extend from midbrain.

Question 7

what are the functions of the Medulla Oblongata?

Answer 7

• regulates heart rate, lots of functions, sensory relay between brain and spinal cord, blood pressure, digestion

Question 8

what are the functions of the Pons?

Answer 8

ascending and descending tracts and relay centers.

Question 9

fun fact - there is not an epidural space in the brain. The dura mater connects directly to the periosteum of skull. Epidural space is only in the spinal cord.

Question 10

what is the function of cerebrospinal fluid? what produces CSF? what layer is CSF in?

Answer 10

• transport message, chemical messengers, and wastes.
• directly connected to blood
• cushions and supports brain
  *choroid plexuses