Anatomy Midterm White Box Info Flashcards
Sagittal planes passes _______ to the median plane
Parallel
Can you wiggle your ears?
Everyone has a muscle for this, but if it isn’t used, the muscle gets weak
What does “deltoid“ mean?
“Shaped like a triangle”
Pulmonary arterial circulation (blue) is what type of blood?
Deoxygenated blood
Pulmonary venous circulation (red) is what type of blood?
Oxygenated blood
Fenestrations and junctions allow what?
Exchange between blood and cells
Where is the supracristal plane?
(High points of iliac crests) and crossing L4 spinous process, L4/L5 intervertebral disc
What is a good way to remember the vertebral arch?
Think of the vertebral arch as a house, where pedicles are the walls and the laminae form the roof
The foramen transversarium transmits what?
Vertebral arteries traveling up to the head
The triangular large vertebral foramen in the cervical region, accommodates what?
The cervical enlargement of the spinal cord
What is the zygapophyseal (facet) joint articulate facet orientation in the cervical region?
In between the frontal and horizontal planes
What is another name for C-spine odontoid peg view?
“Open mouth view”
Each thoracic vertebra has ____ joint surfaces, making motion in this region ______
12, restricted
Zygapophyseal (facet) joint facet orientation in the thoracic region is where?
In the frontal plane
Zygapophyseal (facet) joint facet orientation in the lumbar region is where? And what does this permit?
In the sagittal plane
Permits mainly flexion/extension and minimal rotation
What is another name for the articular surface on the sacrum? Why?
Auricular surface, because it resembles an ear
Where does “ala” on the sacrum get its name from?
Latin for “wing”
Named for its wing-like shape
Tears in the annulus fibrosus allow for what?
herniation of nucleus pulposus out unto the spinal cord (and displaced posterior longitudinal ligament as a result of the disc herniation)
What is the water content in a posterior disc herniation at birth and 60 y/o?
gel-like nucleus pulposus contains 80% water at birth and less than 70% by age 60
What does the triangle of auscultation allow for? Why?
respiratory sounds to be heard clearly
bc of thinning of back musculature
What is a pt asked to do to help reveal the triangle of auscultation?
fold the arms across chest and flex forward
Testing trapezius function is a quick way to assess what? What do you have the pt do?
assess the integrity of cranial nerve XI (accessory)
ask pt to shrug shoulders and test muscle strength
asymmetry indicates a potential lesion of CN XI
What can be a root cause of lumbar lordosis?
psoas muscle tightness (typically psoas major)
What does the transversospinalis group provide?
increased stabilization to the spinal cord
Which muscle group is important for posture?
erector spinae group
What limits hyperextension of the spine?
anterior longitudinal ligament
What limits hyperflexion of the spine?
posterior longitudinal ligament
Name this ligament:
thin ligament that runs the length of the vertebral column
posterior longitudinal ligament
What does the ligamentum flavum of the vertebrae do?
connect adjacent laminae
T/F:
spinal nerves exit above corresponding vertebrae in the cervical region and below in thoracic, lumbar, and sacral regions
TRUE
What is the function of GSA (general sensory afferent)?
discriminative touch, proprioception, and pain and temp from the skin, joints, and muscles (somatic)
What is the function of GVA (general visceral afferent)?
sensation from the viscera (visceral)
What is the function of GVE (general visceral efferent)?
motor to viscera (visceral)
What is the function of GSE (general somatic efferent)?
motor to skeletal muscles (somatic)
Spinal ganglion houses what?
cell bodies for somatic and autonomic sensory neurons
Filum terminale (pia) anchors what?
spinal cord inferiorly to the coccyx
Lining the spinal canal and helping anchor the spinal cord laterally are _______ pairs of denticulate ligaments
20-22
Periosteal and equatorial branches arise from _______ ________ arteries to supply the vertebral column
segmental spinal
When performing a lumbar puncture, the needle should be inserted below the level at which the spinal cord ends. What is this place called?
conus medullaris
What can be palpated in the anatomical snuff box?
scaphoid bone and the radial styloid process
What prevents upward displacement of humeral head?
coracohumeral ligament
What vein runs laterally in the deltopectoral groove and drains into the proximal axillary vein?
cephalic vein
What is a common site for venipuncture?
median cubital vein
What vein runs medially, pierces brachial fascia, and joins the brachial vein to form the axillary vein?
basilic vein
Which lymph nodes are the first to receive lymph from the upper limb?
humeral (lateral) axillary lymph nodes
Where will any infection (lymphangitis) first drain to?
humeral (lateral) axillary lymph nodes
Which nodes receive lymph from the breast and are commonly biopsied when breast carcinoma is present?
pectoral nodes (pectoral axillary lymph nodes)
Axillary artery is divided into 3 parts that correspond to the position of _________ ________ muscle
pectoralis minor