LAB EXAM 3 IMPORTANT STRUCTURES

9

initial segment

8

axon hillock

7

basal ganglia/nucleus

(7) basal ganglia/nucleus function

initiate and terminates programmed automatic skeleton muscle actions

2

Musculocutaneous nerve

located musculotaneous nerve

3 - brachial plexus

(2) Musculocutaneous nerve function

elbow flexor (innervates oracobrachialis, biceps brachii, and brachialis muscles)

3

Falx cerebri

locate the falx cerebrae that lies in the dura mate in longitudinal fissure

11

1

Third order neuron

2

Second order neuron

3

Third order neuron

1

Stapes

2

Incus

3

Malleus

locate the Aqueous humor from ciliary processes

3

where can aqueous humor accumulate?

3

1

Superior oblique muscle

(1) Superior oblique muscle function

moves eyeball inferiorly and laterally

5

Inferior oblique muscle

(5) Inferior oblique muscle function

moves eyeball superiorly and laterally

astrocytes

3

(3) Astrocytes function

makes BBB (blood brain barrier)

locate the bipolar neuron on NOSE

5

locate the Bipolar neurons on EYE

8

1

Unipolar neurons (DRG)

1 (ON VERTEBRA)

Subarachnoid space CSF

8

Ventral ramus (Spinal nerve ventral ramus, SPINAL CORD)

9

Dorsal Ramus

locate the sciatic nerve

1 - sciatic plexus

(1) Sciatic nerve function

supplies post thigh & all below knee (largest nerve)

locate the femoral nerve

2 - lumbar plexus

(2) Femoral nerve function

largest nerve from lumbar, motor and sensory in lower limbs

9

Hypothalamus

(9) Hypothalamus function

center for homeostasis, ANS, hunger, thirst, sleep wake cycles, emotions, indirectly monitors h2o volume, controls endocrine system, produces hormones

5

Mammary bodies

(5) Mammary bodies function

relay smell

6

Medulla oblongata

(6) Medulla oblongata function

basic breathing rhythm, heart rate, blood pressure, swallow, cough, sneeze, vomit

8

Precentral gyrus

6

Postcentral gyrus

(8) Precentral gyrus function

pre - primary motor to opposite side

(6) Postcentral gyrus function

primary somatosensory area

4

brain - pon

5

brainstem - pons

10

midbrain - pon

pons function

controls breathing

1

Superior colliculus

(1) Superior colliculus function

visual reflex

2

Inferior colliculus

(2) Inferior colliculus function

auditory reflexes centers

10

Corpus callosum - Commissural fibers cross to opposite hemisphere

5

commissural tract/fibers: Corpus callosum commissural fibers

12

Commissural fibers

(5) commissural fibers function

connect two hemispheres (corpus callosum)

2 (mushroom)

Arachnoid granulations

(2) Arachnoid granulations function

CSF returns to bloodstream

3

Oculomotor - CN III

(3) CN III Function

oculomotor moves most extrinsic eye muscle 4 of the 6 and constrict pupils

5

Trigeminal - CN V

(5) CNV Function

feel face masticate chew

7

facial - CNVII

(7) CNVII Function

taste, food make face

8

Vestibulocochlear - CNVIII

(8) CNVIII Function

balance (may get dizzy) sound

11

Spinal Accessory

(11) CNXI Function

turns head (no) or flexes neck (yes)

7

Oval window

(7) Oval window function

receives stapes

where does the oval window receives stapes?

5

4

Crista ampullaris

(4) Crista ampullaris function

cupulla dynamic equilibrium rotation vertigo

locate the organ of corti

9 - basilar membrane

5

Olfactory bipolar neuron

locate the Choroid of the vascular tunic of eye

5

locate the Ora serrata of the eye

12

locate the Anterior cavity of the eye

3

locate the Vitreous humor of the eye

5

locate where Scleral venous sinus receives Aqueous humor

4

5

Central fovea - has concentration of cones

locate the Bipolar area of retina

8 (OR 9 ON STUDY GUIDE)

locate Photoreceptor area of retina

9

7

ganglion cell layer

12 (OR 8)

bipolar cell layer

10

neural portion of retina

11

pigmented epithelium of retina

4

Optic disk or blind spot on retina

(4) Optic disk or blind spot on retina function

retina attachment site: no photoreceptors

3

Retinal blood vessels

(3) Retinal blood vessels function

detecting hypertension

10

iris

4

Photoreceptor layer of retina

5 special senses of bipolar neuron

smell, sight, taste, hearing, touch, balance and proprioception

which neuron is the special senses (smell, sight, taste, hearing, touch, balance and proprioception) neuron

bipolar

olfactory receptors funtion

use olfactory hairs to transduce

3

Bipolar special sensory

where do ganglion cells terminate?

thalamus

locate where CSF is contained

1

what covers hair?

tectorial membrane

basilar membrane

9