Biology K103 Lab Exam 3 Diagram | Quizlet

human blood smear

cardiac muscle

skeletal muscle

Blue

What color is the frontal lobe?

Yellow

What color is the parietal lobe?

Green

What color is the temporal lobe

Pink

What color is the occipital lobe?

TERM

Longitudinal fissure

DEFINITION

Splits the brain into left and right hemispheres

TERM

Central Sulcus

DEFINITION

Separates the frontal and parietal lobes

TERM

Sulcus

DEFINITION

a groove or furrow on the surface of the brain

TERM

Postcentral Gyrus

DEFINITION

primary sensory area that perceives touch, pain, pressure and temperature

TERM

Pre-central Gyrus

DEFINITION

primary motor area that controls voluntary movements of the skeletal muscles

TERM

Gyrus

DEFINITION

a ridge or fold on the surface of the brain

optic chiasma

What part is circled in red?

optic chiasma

point at which optic nerve fibers cross in the brain

Cerebellum

What is 1?

Cerebellum

A large structure of the hindbrain that controls fine motor skills.

Cerebrum

What is 2?

Cerebrum

Area of the brain responsible for all voluntary activities of the body

Cerebrum

largest part of the brain

Olfactory bulb

What is 3?

Olfactory bulb

a brain structure located above the nasal cavity beneath the frontal lobes

Corpus callosum

What is 4?

Corpus callosum

a broad band of nerve fibers joining the two hemispheres of the brain.

Corpus callosum

What carries messages between the two hemispheres of the brain?

Fornix

What is 5?

Fornix

C-shaped bundle of nerve fibers in the brain that acts as the major output tract of the hippocampus

Fornix

What lies below the Corpus callosum?

arbor vitae

What is the white matter of the cerebellum called?

Vermis of cerebellum

What is 1?

Vermis of cerebellum

Ridge that separates the cerebellum into 2 sections

Olfactory tract

What is 1?

Olfactory tract

the path along which the olfactory receptors send their electrical messages to the brain.

Pons

what is 17?

Pons

a brain structure that relays information from the cerebellum to the rest of the brain

Medulla

what is 15?

Medulla

the base of the brainstem; controls heartbeat and breathing

Four

how many ventricles does the brain have?

Right lateral ventricle

what ventricle is number 1?

Left lateral ventricle

what ventricle is number 2?

Third ventricle

what ventricle is number 3?

fourth ventricle

what ventricle is number 4?

cornea

what is F?

cornea

gathers and focuses incoming light

vitreous humor

what is the fluid between the retina and the lens?

vitreous humor

helps maintain the shape of the eye

sclera

what is J?

sclera

the white part of the eye that forms the cornea

lens

What part is circled in red?

lens

the transparent structure behind the pupil that changes shape to help focus images on the retina

optic nerve

What part is circled?

optic nerve

the nerve that carries impulses from the eye to the brain

ciliary body

What is the probe pointing to?

ciliary body

Structure surrounding the lens. It contains ciliary muscles, which control the shape of the lens.

retina

Contains sensory receptors that process visual information and sends it to the brain

pupil

the adjustable opening in the center of the eye through which light enters

pupil

What is C?

aqueous humor

What is D?

aqueous humor

fluid in the eye, found between the cornea and the lens

retina

What layer is being pulled away with the tweezers?

choroid

What is the black layer inside the eye called?

sclera, choroid, retina

what are the layers of the eye from top to bottom?

choroid

nourishes the other layers of the eye, and helps to absorb excess light

fovea centralis

What is I?

fovea centralis

tiny pit or depression in the retina that is the region of clearest vision

tapetum lucidum

What is the colored part of the eye?

tapetum lucidum

Iridescent layer found in nocturnal animals for maximizing vision under low intensity light

rods

retinal receptors that detect black, white, and gray; necessary for peripheral and twilight vision.

cones

retinal receptor cells that are concentrated near the center of the retina and that function in daylight or in well-lit conditions, and give rise to color.

pinna

What is 1?

external auditory meatus

What is 12?

tympanum

What is 4?

pinna

the visible part of the ear

external auditory meatus

the formal name for the ear canal

tympanum

picks up and amplifies sound waves

malleus

What is 3?

malleus

a small bone in the middle ear that transmits vibrations of the eardrum to the incus.

incus

What is 2?

incus

a small anvil-shaped bone in the middle ear, transmitting vibrations between the malleus and stapes.

stapes

What is 5?

stapes

a small bone in the middle ear, transmitting vibrations from the incus to the inner ear.

round window

What is 9?

round window

A membrane-covered opening in the inner wall of the middle ear that compensates for changes in cochlear pressure

cochlea

What is 7?

cochlea

a coiled, bony, fluid-filled tube in the inner ear through which sound waves trigger nerve impulses

scala vestibuli

What part is the red box pointing to?

scala vestibuli

leads from oval window to apex of cochlea; contains perilymph

scala vestibuli

also known as vestibular canal

scala media

What part is the blue box pointing to?

scala media

Middle chamber of the cochlea; filled with endolymph

scala media

also known as the middle canal

scala tympani

What part is the green box pointing to?

scala tympani

terminates at round window; contains perilymph

scala tympani

also known as the tympanic canal

organ of corti

tissue containing the hair cells necessary for hearing

organ of corti

What part of the ear is in the circle?

scala media

the organ of corti lies in what layer of the cochlea?

tectoral membrane

lies over organ of corti, distorts hair cells when displaced by sound waves in the cochlea

tectoral membrane

what is 3?

basilar membrane

A structure that runs the length of the cochlea in the inner ear and holds the auditory receptors, called hair cells.