Lab 2: Coronal Approach: thalamus, internal capsule cerebellum

Question 1

order of the lateral corticospinal tract

Answer 1

1) one long axon
2) primary motor cortex to the anterior horn cell of the spinal cord
3) decussation at the cervicomedullary junction

Question 2

when does the lower motor neuron start in the lateral corticospinal tract

Answer 2

when the neuron exits the spinal cord at the anterior horn cell

Question 3

what is the internal capsule?

Answer 3

Pathway for the primary motor and sensory

Question 4

is the thalamus white or gray matter

Answer 4

gray

Question 5

what are peduncles

Answer 5

white matter that connects the pons to the cerebellum

Question 6

what is the vermis

Answer 6

the connection between the cerebellum hemispheres

Question 7

ataxia

Answer 7

area where the cerebellum is not working

Question 8

where does the Cervical Spinal nerve root exit from

Answer 8

the intravertebral foramen

Question 9

what is the area where the spinal cord ends called?

Answer 9

Conus medularis (near L1)

Question 10

what is the bundle of nerves after the Conus Medularis called

Answer 10

the cauda equina

Question 11

Functions of the thalamus

Answer 11

• sensory relay center (vision, touch, pain, pressure, vibration)
  -Influences voluntary movements (basal ganglia and cerebellum)
• Influences the limbic system and memory
• Recognition of pain- transmits to emotions and memory