Week 8 Checkpoints

Question 1

the innermost intercostal muscles are separated from the internal intercostals by

Answer 1

the intercostal neurovascular bundle

Question 2

which muscle of the erector spinae group is the most medial

Answer 2

spinalis

Question 3

which transversospinal muscle spans 2-4 vertebral segments

Answer 3

multifidus

Question 4

a patient has weakness in rotating their spine/neck to the right. which muscle might be weak?

Answer 4

right splenius cervicis

Question 5

which back muscle has its insertion on the posterior tubercles of the transverse processes of C1 - C4

Answer 5

splenius cervicis

Question 6

which structures bound the superior thoracic aperture?

Answer 6

T1 vertebra, first ribs, manubrium

Question 7

what is a specialized feature of the atria?

Answer 7

pectinate muscles

Question 8

what is the function of the papillary muscles?

Answer 8

anchor the chordae tendineae to prevent valve prolapse

Question 9

which part of the conducting system carries part of the right bundle branch toward the anterior papillary muscle?

Answer 9

moderator band

Question 10

which tissue layer of the heart contains cardiac muscle cells?

Answer 10

myocardium

Question 11

which vein drains blood from the area supplied by the marginal artery?

Answer 11

small cardiac vein

Question 12

what is the first branch off the aortic arch?

Answer 12

right brachiocephalic

Question 13

where is the hilum of the lung located?

Answer 13

on the mediastinal surface

Question 14

which fissure separates the superior and inferior lobes of the right lung?

Answer 14

oblique fissure

Question 15

which innervation causes bronchoconstriction in the lungs?

Answer 15

parasympathetic

Question 16

where does the majority of gas exchange occur?

Answer 16

alveolar sacs

Question 17

which bronchus is more vertically angled, increasing the risk of aspiration?

Answer 17

right primary bronchus

Question 18

which nerve innervates the diaphragm?

Answer 18

phrenic nerve

Question 19

which muscles are considered accessory muscles of inspiration?

Answer 19

sternocleidomastoid and scalenes

Question 20

myelination begins in the fourth fetal month and finishes by what year of life?

Answer 20

third

Question 21

diencephalon develops into the

Answer 21

third ventricle, thalamus, and hypothalamus

Question 22

the organs begin forming on which day to the end of week eight

Answer 22

15

Question 23

during brain formation in utero, what develops into the fourth ventricle, pons, upper medulla, and cerebellum

Answer 23

metencephalon (upper hindbrain)

Question 24

what develops into dermis, muscles, skeleton, and the excretory and circulatory systems

Answer 24

mesoderm

Question 25

in development, parts of the somite, the sclerotome, becomes ...

Answer 25

the vertebrae and skull

Question 26

what forms on day 18 to 21 from the ectoderm?

Answer 26

neural tube

Question 27

myelination begins in which fetal month?

Answer 27

fourth

Question 28

neurons in what region of the neural tube process sensory information

Answer 28

dorsal

Question 29

where is the primary somatosensory cortex located?

Answer 29

post central gyrus

Question 30

the central sulcus separates the front lobe from the ...

Answer 30

parietal lobe

Question 31

where is the primary visual cortex located?

Answer 31

occipital lobe

Question 32

what lobe does the anterior cerebral artery (ACA) supply?

Answer 32

medial frontal lobe

Question 33

what area of the body is most likely to be affected by a stroke in the middle cerebral artery?

Answer 33

elbow

Question 34

which structure connects the two cerebral hemispheres?

Answer 34

corpus callosum

Question 35

which cortical area is responsible for our ability to perceive (make meaning of) sensory information?

Answer 35

secondary sensory areas in the parietal lobe

Question 36

what area of the cortex is responsible for motor planning for speech?

Answer 36

Broca's area in the frontal lobe

Question 37

following a recent stroke, a patient presents with loss of sensation and motor function in the left lower extremity. his arm and hand are not impacted. he is communicating with family without difficulty. based on your knowledge, which artery is most likely involved?

Answer 37

anterior cerebral artery

Question 38

a man is sitting on a chair. he brings himself into a standing position. his tibiofemoral joint moves from a flexed position to full extension during the maneuver. what is happening at the tibiofemoral joint during this maneuver?

Answer 38

anterior roll with posterior glide of the distal femur on the proximal tibia

Question 39

what is true concerning the close-packed position of any joint?

Answer 39

there is a maximum area of surface contact occurring

Question 40

joint motion that is stopped by the joint capsule or ligaments is an example of which type of end-feel?

Answer 40

firm

Question 41

the articulation of the radius with the capitulum of the humerus during pronation is an example of which type of arthrokinematic movement?

Answer 41

spin

Question 42

the articulation of the femur with the tibia during closed-chain knee extension is an example of which type of arthrokinematic movement?

Answer 42

roll, spin, slide

Question 43

which plane of movement does the humerus move through during flexion and extension of the glenohumeral joint?

Answer 43

sagittal

Question 44

what is the orientation of the axis of rotation during flexion and extension of the glenohumeral joint?

Answer 44

ML (medial-lateral)

Question 45

the resistance to movement between two objects that are in contact with each other is an example of which type of force?

Answer 45

friction

Question 46

the perpendicular distance between an axis of rotation and the line of force is known as

Answer 46

moment arm