Neuro Lab 3

Question 1

Anterior Commissure

Answer 1

Shares information (olfactory) between hemispheres

Question 2

Fornix (Body and Columns)

Answer 2

Connects Mammillary Body to Hippocampus

Question 3

Posterior Commissure

Answer 3

Shares information (Pupillary Reflexes) between hemispheres

Question 4

Corpus Callosum

Answer 4

Large white matter structure which shares information between hemispheres. Rostrum, genome, body, and selenium.

Question 5

Superior Colliculus

Answer 5

Associated with Vision

Question 6

Inferior Colliculus

Answer 6

Associated with Audition

Question 7

Pyramids (Ventral)

Answer 7

Descending Path for Motor Function to Body

Question 8

Pyramidal Decussation

Answer 8

Crossing of Descending Motor Fibers

Question 9

Sensory Fibers (Gracile/Cuneate Fasciculus) (Dorsal)

Answer 9

Ascending Sensory Fibers from Body

Question 10

Ophthalmic Artery

Answer 10

• branch of Internal Carotid Artery

- Serves the eye

Question 11

Anterior Cerebral Artery (ACA)

Answer 11

• Branch of Internal Carotid Artery

- Supplies Medial Brain Surface

Question 12

Middle Cerebral Artery (MCA)

Answer 12

• Branch of Internal Carotid Artery

- Supplies Lateral Brain Surface

Question 13

Posterior Communicating Artery (PCA)

Answer 13

• Branch of Internal Carotid Artery

- Connects Anterior Circulation to Posterior Circulation

Question 14

Anterior Communicating Artery

Answer 14

• Connects two Anterior Cerebral Arteries (ACAs)

Question 15

Right and Left Posterior Spinal Arteries

Answer 15

• Branches of Vertebral Arteries

- Blood Supply to Dorsal Aspect of Spinal Cord and Caudal Medulla

Question 16

Anterior Spinal Artery

Answer 16

• Branch of Vertebral Arteries

- Supplies Ventral 2/3 of Spinal Cord and Caudal Medulla

Question 17

Posterior Inferior Cerebellar Artery (PICA)

Answer 17

• Branch of Vertebral Arteries

- Serves Inferior Cerebellum and Lateral Medulla

Question 18

Basilar Artery

Answer 18

• Terminal Branch and Junction of Vertebral Arteries

Question 19

Labyrinthine

Answer 19

• Branch of Basilar Artery

- NOTE: Difficult to find, can be a branch off of the AICA

Question 20

Anterior Inferior Cerebellar Artery (AICA)

Answer 20

• Branch of Basilar Artery

- Supplies Ventral Cerebellum and Pons

Question 21

Superior Cerebellar Artery

Answer 21

• Branch of Basilar Artery

- Supplies Superior Cerebellum, Midbrain Structures, Superior and Middle Cerebellar Peduncles

Question 22

Posterior Cerebral Artery

Answer 22

• Branch of Basilar Artery

- Serves Midbrain, Hypothalamus, Thalamus, and Occipital Lobe (Visual Cortex)

Question 23

Circle of Willis

Answer 23

Communication of Anterior to Posterior Circulation Systems

Question 24

Corticomeningeal (Leptomeningeal) Anastomosis

Answer 24

• Overlap of ACA (Anterior Cerebral), MCA (Middle Cerebral), and PCA (Posterior Communicating) on Superior/Lateral Cerebral Hemispheres

Question 25

External Carotid Artery

Answer 25

Ophthalmic Artery Anastomosis (potential)