Week 2

Question 1

Superior Colliculi

Rostral Tectum

Answer 1

Visual relay station

Helps relay connections that correlate head and neck movements

Question 2

Inferior Colliculi

Caudal Tectum

Answer 2

Auditory relay station

Helps relay connections from peripheral auditory structures (ex: cochlea) to cortical auditory regions

Question 3

Substantia Nigra

Tegmentum

Answer 3

Part of the basal ganglia, involved in movement

Major dopamine-producing and storage areas

Question 4

Ventral Tegmental Area

Rostral Tegmentum

Answer 4

Plays role in reward system (reinforcing behavior), with projections to limbic system and cortex

Question 5

Red Nuclei

Rostral Tegmentum

Answer 5

Major dopamine-producing area

Motor coordination, motor control for flexor muscle groups

Question 6

Oculomotor Nuclei

Rostral Tegmentum

Answer 6

Oculomotor Nuclei: contains neurons that innervate extraocular muscles
Edinger-Westphal Nuclei: pre-ganglionic nuclei that innervates the iris sphincter muscle, ciliary muscle

Question 7

Trochlear Nuclei

Caudal Tegmentum

Answer 7

Contains nuclei going on to innervate superior oblique muscle of the eye

Question 8

Superior Cerebellar Peduncle
Caudal Tegmentum
(also: Rostral Pons)

Answer 8

Relay station to cerebellum

Question 9

Raphe Nuclei
Caudal Tegmentum
(also: Rostral Pons)

Answer 9

Major serotonin-producing neurons in the brain

Question 10

Crus Cerebri

Basis Pedunculi

Answer 10

Large bundles of somatotopically-organized axons containing fibers from motor pathways