Sheep Brain Dissection

What is the name of the X-shaped structure where the optic nerves meet?

• Optic disc

• Optic canal

• Optic chiasm

• Optic tract

What is the primary function of the Cranial Nerve I, also known as the olfactory nerve?

• It relays information about the sense of balance.

• It is responsible for oral sensation, taste, and salivation.

• It relays information about the sense of smell.

• It controls the ability to move your eyes away from your nose.

Which part of the brain is described as a densely folded structure at the base and is connected to the brain stem?

• Cerebrum

• Cerebellum

• Brain stem

• Occipital lobe

What is the largest part of the brain that consists of four lobes?

• Brain stem

• Cerebellum

• Cerebrum

• Frontal lobe

Which nerves are involved in sensing input from the environment and are visible on the surface of the brain?

• Oculomotor and trochlear nerves

• Abducens and trigeminal nerves

• Optic and olfactory nerves

• Facial and vestibulocochlear nerves

Indicate the four main parts of the brain.

a

b

c

d

diencephalon

brain stem

cerebrum

cerebellum

These are three protective membranes that surround the brain and spinal cord.

• Meninges

• Pons

• Fissures

• Cerebellum

Which part of a neuron makes up white matter in your brain?

• Dendrites
• axon (wrapped in myelin sheath)
• Axon Terminals
• Dendrites, axon, and the axon terminals

What makes up gray matter?

• Unmyelinated axons and cell bodies
• Bundles of myelinated axons

What is the condition caused by the inflammation of the connective tissue membranes covering the brain and spinal cord?

• meningitis

• encephalitis

• Huntington's chorea

• ataxia