Nervous System II

Question 1

What are the three regions of the brain?

Answer 1

prosencephalon, mesencephalon, rhombencephalon

Question 2

what does the prosencephalon subdivide into?

Answer 2

telencephalon (cerebrum) and diencephalon (epithalamus, thalamus, hypothalamus)

Question 3

what does the rhombencephalon subdivide into?

Answer 3

metencephalon (pons, cerebellum), and mylencephalon (medulla oblongata)

Question 4

the myelencephalon houses nuclei of cranial nerves _________ in lower vertebrates or ______ in mammals

Answer 4

V - X, V - XII

Question 5

T/F? the mylencephalon contains centers regulating heartbeat, blood pressure, intestinal motility, and pulmonary respiration

Answer 5

True

Question 6

What is the fucntion of the cerebellum?

Answer 6

fine tunes movement that is ultimately produced by the cerebral cortex

Question 7

what does the mesencephalon consist of?

Answer 7

tectum and tegmentum

Question 8

what does the tectum consist of?

Answer 8

2 optic lobes (anterior and superior colliculus) and 2 auditory lobes (posterior/inferior colliculus)

Question 9

the tegmentum contains portions of CN ____ and ____

Answer 9

III, IV

Question 10

what does the diencephalon consist of?

Answer 10

thalamus, hypothalamus, epithalamus

Question 11

What is the fucntion of the epithalamus?

Answer 11

includes the pineal gland which affects skin pigmentation in lower vertebrates, photoreception in lampreys, and biological rhythms in higher vertebrates

Question 12

what is the function of the thalamus?

Answer 12

major relay center for all sensory impulses form the spinal cord, hindbrain, and midbrain to telencephalon

Question 13

what is the function of the hypothalamus?

Answer 13

regulates body temperature, water balance, appetite, sexual behavior etc.

Question 14

what is the function of the pituitary gland?

Answer 14

master control of horomones

Question 15

the neurohypophyseal bud is a ______ outgrowth from forebrain derived from the neuroectoderm, becomes the ______ pituitary lobe

Answer 15

ventral, posterior

Question 16

rathke’s pouch is a _____ outgrowth from the stomodeum derived from the oral ectoderm, becomes _______ pituitary lobe

Answer 16

dorsal, anterior

Question 17

the telencephalon consists of the ______

Answer 17

cerebrum

Question 18

what are the two regions of the cerebrum?

Answer 18

pallium (dorsal) and subpallium (ventral)

Question 19

what is the function of the pallium in fishes?

Answer 19

primitive sensory area, receives and processes olfactory input

Question 20

what is the function of the subpallium in fishes?

Answer 20

motor area, receives input from pallium and thalamus, innervates lower motor neurons of cranial and spinal nerves

Question 21

what is the function fo the pallium in amphibians?

Answer 21

medial, dorsal, and lateral and ventral parts

Question 22

what is the function of the subpallium in amphibians?

Answer 22

gives rise to nuclei such as the globus pallidus and striatum that coordinates movement associated with limbs

Question 23

what is the function of the lateral pallium in reptiles?

Answer 23

expands becoming dorsal ventricular ridge, receives and processes visual, auditory, and somatic sensory information from thalamus

Question 24

what is the function of the subpallium in reptiles?

Answer 24

sends efferents to innervate lower motor neurons of cranial and spinal nerves

Question 25

In mammals, the dorsal pallium expands forming the __________

Answer 25

neocortex

Question 26

in mammals, each hemisphere is connected via the __________

Answer 26

corpus callosum

Question 27

the basal ganglia is involved in the

Answer 27

coordination of movement

Question 28

in mammals, the medial pallium is now the ____

Answer 28

hippocampus