Sheep Brain Practical

What structure is the 4th ventricle from?

What does the 4th ventricle hold?

• medulla

• cerebrospinal fluid

what does the central canal contain? //

contains cerebrospinal fluid & dorsal root ganglion

functions of cerebellum

• coordination of muscle action

• maintenance of posture and equilibrium

What does the corpus callosum connect? //

2 cerebral hemispheres

function of cortex

initiates every thought and voluntary action

functions of frontal lobe

• voluntary movements

• personality (phineas)

• some memory and speech

• smell (olfactory)

what does gray matter contain?

• cell bodies

• dendrites (unmyelinated nerve fibers)

• neuroglial cells

What are gyrus?

Bumps on the brain

what are the lateral ventricles separated by?

Septum Pellucidum

what does the longitudinal fissure separate?

separates left and right cerebral hemispheres

functions of the medulla

• heart rate

• respiration rate

• swallowing and vomiting reflexes

function of the midbrain

Controls eye movement/ eye reflexes

function of occipital lobe

the vision center

oculomotor nerve

transmits impulses to control eyes

function of olfactory tract

detects odors and transmits signals from the nasal cavity

function of olfactory bulb

processes these signals and relays them to the brain

function of optic chiasm

where optic nerves cross

allowing visual information from each side of the environment to reach the opposite side of the brain

function of optic nerve

communication cable transmitting visual information

functions of paterial lobe

• cutaneous sensory (heat, cold, pain, and touch)

• Taste

function of pons

regulate muscle movement

the septum pellucidum separates the…

separates the anterior horns of the left and right lateral ventricles

functions of the spinal cord

• transmits sensory information

• manages automatic reflexes

a sulcus is called?

a shallow groove

function of thalamus

• Relay center for sensory impulses to the cortex

• (Motor impulses from basal ganglia and cerebellum to the cortex)

what does white matter contain and what does it do?

• myelinated nerve fibers (axons)

• carry impulses to and from brain