Block 1 Questions

Question 1

What fibers are found in the vagus nerve?

Answer 1

preganglionic parasympathetic

Question 2

Scoliosis has the greatest effect on this muscle with the greatest moment arm

Answer 2

Iliocostalis

Question 3

What muscle supports the spine but does not contribute to movement?

Answer 3

Multifidus

Question 4

Two football players collide and cause what type of force?

Answer 4

shear force

Question 5

How does a muscle affect a joint?

Answer 5

line of pull

Question 6

Crossing the arms opens the triangle of auscultation by doing what?

Answer 6

displacing the medial border of the scapula

Question 7

Immobilization of the arm and scapula, the dorsoscapular nerve produces what?

Answer 7

lateral flexion of the neck

Question 8

Lateral flexion of the neck is coupled with what?

Answer 8

ipsilateral rotation

Question 9

Cervical articulation facet joints

Answer 9

45 degrees with 0 degrees of rotation

Question 10

Spinal nerve between C6-C7?

Answer 10

C7

Question 11

Axial CT scan of back has an arrow pointing to?

Answer 11

ligamentum flavum

Question 12

Injury during MVA to ligaments that restrict lateral flexion

Answer 12

intertransversarii

Question 13

Arterial supply to the middle of the vertebral body?

Answer 13

spinal artery

Question 14

Cheapest imaging?

Answer 14

Radiograph

Question 15

Least amount of radiation?

Answer 15

MRI

Question 16

Needle biopsy of mass giving real time visualization?

Answer 16

ultrasound

Question 17

Needle biopsy of mass giving real time visualization?

Answer 17

ultrasound

Question 18

Where does the arachnoid end?

Answer 18

S2

Question 19

To relax/stretch the hamstring using strain, what receptor do you exploit?

Answer 19

GTO of the hamstring

Question 20

Norepinephrine is the NT?

Answer 20

postganglionic sympathetic

Question 21

Where are the cell bodies of the preganglionic sympathetic

Answer 21

lateral horn T1-L2

Question 22

When does crossing over occur?

Answer 22

prophase 1

Question 23

Duration of pregnancy starting from last menstrual period?

Answer 23

40 weeks

Question 24

Positive pregnancy test, but no embryologic development results from?

Answer 24

Hyatidiniform mole

Question 25

Where is an oocyte fertilized?

Answer 25

Uterine tube

Question 26

What does the acrosomal reaction do?

Answer 26

prepares it to penetrate the zona pellucida

Question 27

Phenotypical female with 45 chromosomes and only 1 x?

Answer 27

Turner syndrome

Question 28

DNA duplicates during which phase?

Answer 28

interphase

Question 29

Herniation at the right side of L5/S1 affects which nerve?

Answer 29

right L5

Question 30

Which germ layer do the CNS and PNS come from?

Answer 30

ectoderm

Question 31

The vertebral column comes from what?

Answer 31

paraxial mesoderm

Question 32

Sacrococcygeal teratoma arises from what?

Answer 32

proliferation of remnants of the primitive streak

Question 33

Chronic pain. Surgery needs to cut something to eliminate the sensory but maintain the motor.

Answer 33

cut the dorsal root (dorsal is sensory, ventral is motor)

Question 34

Pain and temperature are part of what tract?

Answer 34

contralateral spinothalmic tract

Question 35

Spastic paralysis after diving, which neuron is damaged?

Answer 35

upper motor neuron

Question 36

Trauma to the C1 transverse process affects which muscle the most?

Answer 36

Obliquus capitis superior (obliquus capitis inferior also attaches here)