Block 1 Questions Flashcards
What fibers are found in the vagus nerve?
preganglionic parasympathetic
Scoliosis has the greatest effect on this muscle with the greatest moment arm
Iliocostalis
What muscle supports the spine but does not contribute to movement?
Multifidus
Two football players collide and cause what type of force?
shear force
How does a muscle affect a joint?
line of pull
Crossing the arms opens the triangle of auscultation by doing what?
displacing the medial border of the scapula
Immobilization of the arm and scapula, the dorsoscapular nerve produces what?
lateral flexion of the neck
Lateral flexion of the neck is coupled with what?
ipsilateral rotation
Cervical articulation facet joints
45 degrees with 0 degrees of rotation
Spinal nerve between C6-C7?
C7
Axial CT scan of back has an arrow pointing to?
ligamentum flavum
Injury during MVA to ligaments that restrict lateral flexion
intertransversarii
Arterial supply to the middle of the vertebral body?
spinal artery
Cheapest imaging?
Radiograph
Least amount of radiation?
MRI
Needle biopsy of mass giving real time visualization?
ultrasound
Needle biopsy of mass giving real time visualization?
ultrasound
Where does the arachnoid end?
S2
To relax/stretch the hamstring using strain, what receptor do you exploit?
GTO of the hamstring
Norepinephrine is the NT?
postganglionic sympathetic
Where are the cell bodies of the preganglionic sympathetic
lateral horn T1-L2
When does crossing over occur?
prophase 1
Duration of pregnancy starting from last menstrual period?
40 weeks
Positive pregnancy test, but no embryologic development results from?
Hyatidiniform mole
Where is an oocyte fertilized?
Uterine tube
What does the acrosomal reaction do?
prepares it to penetrate the zona pellucida
Phenotypical female with 45 chromosomes and only 1 x?
Turner syndrome
DNA duplicates during which phase?
interphase
Herniation at the right side of L5/S1 affects which nerve?
right L5
Which germ layer do the CNS and PNS come from?
ectoderm
The vertebral column comes from what?
paraxial mesoderm
Sacrococcygeal teratoma arises from what?
proliferation of remnants of the primitive streak
Chronic pain. Surgery needs to cut something to eliminate the sensory but maintain the motor.
cut the dorsal root (dorsal is sensory, ventral is motor)
Pain and temperature are part of what tract?
contralateral spinothalmic tract
Spastic paralysis after diving, which neuron is damaged?
upper motor neuron
Trauma to the C1 transverse process affects which muscle the most?
Obliquus capitis superior (obliquus capitis inferior also attaches here)
