Anatomy Practical 1 Flashcards
the pre central gyrus is also called the ?
primary motor cortex
the longitudinal fissure divides ?
right and left hemispheres
the central sulcus of rolando divides?
the frontal and parietal lobe
the precentral gyrus is also known as the ?
primary motor cortex
the postcentral gyrus is also known as?
the primary somatosensory cortex
the lateral fissure is also known as ?
the sylvian fissure
what is broca’s area ?
on the frontal lobe that is dominant for language development (usually left). involved in motor programming for speech production
what is wernicke’s area?
on posterior portion of superior temple, Jairus in the hemisphere, those dominant for language (usually left) involved in the ability to understand and produce meaningful speech
how many ribs are there?
7 true, 5 false (2 are floating)
a saggital cut can also be called ?
horizontal or axial
tell me about the anterior & posterier fontanelles in newborns ?
they close during the first 2 years of life. After 1 year they should be difficult to feel or locate because they will be so small.
what skeletal or metabolic disorders delay the closure of the anterior & posterior fontanelles in nerborns?
Hydrocelphalus & trisomies (presence of an extra chromosome) like down syndrome
portions of the foramen lacerum are blocked by ?
fibrocartilage
does the carotid canal pass through the foramen lacerum
what are the 4 divisions of the temporal bone ?
squamous, mastoid, petrous, & tympanic
CN I name & function?
Cranial Nerve 1
Olfactory bulb & nerve
Function : Smell
CN II name & function?
Cranial Nerve 2
Optic (nerve,chiasm,& tract) nerve
Function : vision
CN III name & function?
Cranial nerve 3
Oculomotor Nerve
Function : eye movement (elevation & adduction)
CN IV name & function?
Cranial Nerve 4
Trocchlear nerve
Function : eye movement (depession of adducted eye)
CN V name & function?
Cranial Nerve 5
Trigeminal Nerve
Function : facial sensation - contributes to smell for noxious/painful irritants, sensory, muscle spindles & mechanoreceptors, mastication
CN VI name & function?
Cranial nerve 6
Abducens Nerve
Function : eye movement - abduction
CN VII name & function?
Cranial Nerve 7
Facial Nerve
Function : facial expressions, taste buds of tongue & palate, salivation, lacrimation
CN VIII name & function?
Cranial Nerve 8
Vestibulocochlear Nerve
Function : balance & hearing
CN IX name & function?
Cranial Nerve 9
Glossopharyngeal Nerve Function : taste & innervation of pharnyx
CN X name & function?
Cranial Nerve 10
Vagus Nerve
Function : swallowing & talking, cardiac & GI tract & respiration, & taste
CN XI name & function?
Cranial Nerve 11
Spinal Accessory Nerve
Function : pharynx & larnyx muscles, neck & shoulder movement
CN XII name & function?
Cranial Nerve 12
Hypoglossal Nerve
Function : tongue movement
What are the lobes of the brain?
frontal, parietal, temporal, occipital, insula, limbic
Tell me about the internal auditory canal anatomy
Cranial Nerve 7 is on top which is the facial nerve. Cranial nerve 8 is on the bottom which is the Vestibucochlear nerve. (7up, Coke down)
what are the cranial bones? how many are there of each?
1 frontal, 2 parietal, 2 temporal, 1 occipital, 1 ethmoid, 1 sphenoid
what are the facial bones? how many are there of each?
2 nasal, 1 mandible, 2 maxilla, 1 vomer, 2 zygomatic, 2 lacrimal, 2 nasal conchae, 2 palatine
what are the ear ossicles? how many are there of each?
2 malleus, 2 incus, and 2 stapes
how many hyoid bones are there?
1
what are the spinal column bones? how many are there of each?
7 cervical vertebrae, 12 thoracic vertebrae, 5 lumbar, 1 sacrum(5 fused), and 1 coccyx (4 fused)
what are the bones in the sternum?
manubrium, gladiolus, and xiphoid process
what are the bones in the shoulder girdle?
clavicle & scapula
what are the bones in the arms ?
humerus, ulna, and radius
what are the bones in the hands and how many in each hand?
8 carpels in each hand, 5 metacarpels in each hand, & 14 phalanges in each hand
what are the bones in the pelvic girdle?
2 hipbones
what are the bones in the legs ?
Femur, fibia (fine), tibia (thick)
which forarm bone is on the outside when your thumb is facing away from your body?
your radius, remember you take someones radial pulse on the outside of their arm
what are the bones in the feet & how many in each foot?
7 tarsels in each foot, 5 metatarsels in each foot, and 14 phalanges in each foot
what type of slice is needed to see the limbic lobe?
midsaggital
what’s lacrimation?
the flow of tears
how do you see the insula lobe?
pull down on the temporal lobe and up on the frontal and parietal lobes
Tell me about the Schwabach Test ?
Compare patient’s BC to normal hearing with tuning fork on the patient’s mastoid process (assumes normal hearing for the examiner).
NORMAL : patient hears the tone as long as the examiner
CONDUCTIVE : Patient hears tone as long or longer than the examiner
SENSORINEURAL : Patient hears the tone for a shorter time that examiner
Tell me about the Rinne Test ?
Compare patient’s AC to BC. Alternating the tuning fork between mastoid & ear opening. Common method is to place the tuning fork on the mastoid and ask the patients to report when the sound is gone, then move the tuning fork to present at the ear canal opening without tapping the fork again and see if they soft sound that was “gone” can be heard at the ear canal.
NORMAL : louder at ear (AC) written as AC>BC or a positive Rinne
CONDUCTIVE : louder on mastoid (BC) written as AC<BC or negative Rinne
SENSORINEURAL : Louder at ear (AC) same as normal but if the patient is reporting loss and loss is suspected than AC>BC would indicate the loss is SNHL rather than conductive
Tell me about the Bing Test ?
Determine presence or absense of the occulsion effect. Tuning fork on mastoid with ear canal open then occluded with finger or pushing tragus to cover the opening.
NORMAL : tone is louder when EAC (external auditory canal) is occcluded with finger
CONDUCTIVE : Tone does not sound louder when ear is occluded
SENSORINEURAL : Tone sounds louder when EAC is occluded - same as normal
Tell me about the Weber Test ?
Used to determine conductive vs. sensorineaural hearing loss in unilateral cases. Tuning fork is placed in the middle of forehead.
NORMAL : Tone heard equally as loud in both ears (this could also indicate hearing loss that is the same between both ears)
CONDUCTIVE : tone is louder in poorer ear
Which 2 tuning fork tests are the most common?
Weber & Rinne
What frequency tuning forks can be used for TF Tests?
Low frequency : 256 Hz, 512 Hz, or 1024 Hz
atlas
first vertebrae
axis
second vertebrae
tell me about the sphenoid bone ?
greater wing in front of temporal bone. Spans within the skull and looks like a pair or wings
tell me about the ethmoid bone
in front of sphenoid bone. near the eye duct
what is the mastoid process ?
bigger process between occipital and temporal bone
what is the foramen magnum?
middle/posterior central hole for spinal cord
where is the jugular foramen?
lateral to the foramen magnum. below ridge
where is the superior orbital fissure?
posterior side of the sphenoid bone
tell me about the posterior cranial fossa
in the posterior of the skull, where the cerebellum fits into
tell me about the middle cranial fossa
area within the middle where the temporal lobes can sit
tell me about the anterior cranial fossa
front section of the skull where the frontal and occipital structures can sit it
where is the optic canal?
bottom medial part of the sphenoid bone
where is the foramen ovale ?
oval shaped hole inferior to the sphenoid bone
foramen spinosum
lateral hole to the foramen ovale. smaller in size
what is the clivis?
“slide” anterior to the foramen magnum
what is the tympanic area ?
area for anything auditory
what is your clavicle ?
collarbone
what is your scapula ?
shoulder blade
The sternum is also referred to as ?
the breast bone
precentral gyrus
M1
postcentral gyrus
S1
what structures are part of the brainstem ?
midbrain, pons, medulla.
what’s the purpose of the round window?
membrane between the middle and inner ear that equalizes pressure in the inner ear
what’s the purpose of the malleus?
relay vibrations of the incoming soundwaves produced by the eardrum to the incus
what are the 4 quadrants of the tympanic membrane ?
posterior superior, posterior inferior, anterior superior, and anterior inferior
what are the parts of the malleus ?
facet of malleus, long crus, lenticular process, body, and short crus
what are the parts of the stapes?
head, neck, posterior crus, anterior crus, and stapes footplate
what are the parts of the incus?
head, facet for incus, neck, manubrium, anterior process, and lateral process