Anatomy and Physiology VI

Question 1

What are the five principle responsibilities of the limbic system?

Answer 1

Feeding, fleeing, fighting, feeling, and sex (p.415)

Question 2

What is the function of the cerebellum?

Answer 2

To modulate movement and aid in coordination and balance (p.415)

Question 3

What are the inputs to the cerebellum?

Answer 3

Contralateral cortex via middle cerebral peduncle and ipsilateral proprioceptive information via inferior cerebellar peduncle from the spinal cord (p.415)

Question 4

What types of nerves provide cerebellar input?

Answer 4

Climbing and mossy fibers (p.415)

Question 5

What type of information travels via the middle cerebellar peduncle to the cerebellum?

Answer 5

Information from the contralateral cortex (p.415)

Question 6

What type of information travels via the inferior cerebellar peduncle to the cerebellum?

Answer 6

Ipsilateral proprioceptive information from the spinal cord (p.415)

Question 7

From where does the cerebellum receive contralateral information?

Answer 7

Cerebral cortex (p.415)

Question 8

From where does the cerebellum receive ipsilateral information?

Answer 8

Proprioceptive information from the spinal cord (p.415)

Question 9

To where does the cerebellum send information?

Answer 9

To the contralateral cortex to modulate movement and to the deep nuclei (p.415)

Question 10

What information is sent contralaterally from the cerebellum?

Answer 10

Information to the contralateral cortex to modulate movement (p.415)

Question 11

What is the output pathway of information from the cerebellum to the contralateral cortex?

Answer 11

Purkinje fibers send information to the deep nuclei of the cerebellum which in turn send information to the contralateral cortex via the superior cerebellar peduncle (p.415)

Question 12

What information is sent through the superior cerebellar peduncle?

Answer 12

Information about movement is sent from the cerebellum to the contralateral cortex (p.415)

Question 13

What tracts are cerebellar inflow tracts and what tract is a cerebellar outflow tract?

Answer 13

Inflow: inferior and middle cerebellar peduncles; Outflow: Superior cerebellar peduncle (p.415)

Question 14

What types of nerves are the output nerves of the cerebellum?

Answer 14

Purkinje fibers (p.415)

Question 15

Name the deep nuclei of the cerebellum from lateral –> medial location.

Answer 15

Dentate, Emboliform, Globose, Fastigal (pneumonic “dont eat greasy foods”) (p.415)

Question 16

What is the primary function of the lateral cerebellum?

Answer 16

Voluntary movement of the extremities (p.415)

Question 17

What is the primary function of the medial cerebellum?

Answer 17

Balance and truncal coordination (p.415)

Question 18

What clinical finding is associated with a lesion to the lateral cerebellum?

Answer 18

Propensity to fall towards the injured side (p.415)

Question 19

What is the function of the basal ganglia?

Answer 19

The basal ganglia is important in voluntary movements and in making postural adjustments (p.416)

Question 20

From where does the basal ganglia receive its input?

Answer 20

From the cortex (p.416)

Question 21

How is movement modulated by the basal ganglia?

Answer 21

Basal ganglia provides negative feedback to the cortex to modulate movement (p.416)

Question 22

What are the components of the striatum of the basal ganglia?

Answer 22

Putamen and Caudate (p.416)

Question 23

What is the function of the putamen?

Answer 23

Motor functions (p.416)

Question 24

What is the function of the caudate?

Answer 24

Cognitive functions (p.416)

Question 25

What are the components of the lentiform nucleus of the basal ganglia?

Answer 25

Putamen and globus pallidus (p.416)