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anatomy > anatomy quiz 3 > Flashcards

anatomy quiz 3 Flashcards

1
Q

thorax two openings

A

-superior thoracic aperture
-inferior thoracic aperture

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2
Q

posterior

A

thoracic vertebrae and their intervertbral disks

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3
Q

lateral

A

ribs and thoracic muscles

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4
Q

anterior

A

sternum

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5
Q

sternum

A

-manubrium
-body
-xiphoid process

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6
Q

superior thoracic aperture

A
  • ## surrounded in bone by T1 vertebrum, rib 1, and manubrium
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7
Q

Inferior thoracic aperture

A

-surrounded by T12 vertebra, rib 11 and 12, and the cartilage of the 7-10 and the xiphoid process

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8
Q

the mediastinum

A

medial portion that contains viscera and divides left and right pleura

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9
Q

parietal pleura

A

more superficial and associated with the thoracic wall

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10
Q

visceral pleura

A

deeper and surrounding the lung

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11
Q

pneumothorax

A

puncture into this space to allow air in

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12
Q

superficial compartment

A

skin and breast

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13
Q

deep compartment

A

muscles and connective tissue

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14
Q

mammary glands

A

modified sweat glands
Composed of small
secretory lobules that empty
into 15-20 small lactiferous
ducts
-each duct empties into its own opening in the nipple

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15
Q

Arterial supply

A

collects blood through multiple arteries associated with the chest and limbs

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16
Q

venous supply

A

axillary internal thoracic and intercostal Viens

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17
Q

innervation

A

2nd -6th intercostal nerves 4th intercostal innervates nipple

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18
Q

lymphatic drainage

A

mostly through axillary nodes

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19
Q

pectoralis major

A

adduction, medial rotation, and flexion of the humerus

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20
Q

subclavius

A

pulls calicle medially
depressed tip of shoulder

21
Q

pectoralis minor

A

depressed tip of shoulder
protracts scapula

22
Q

bones of thorax

A

superior- head of its own rib
inferior- head of the next ribs
oval or lateral facet for tubercle of own rib

23
Q

important landmarks

A

jugular notch and xiphoid visible and palpable

24
Q

serratus anterior

A

on lateral margins

25
Q

exterior intercostal

A

inspiration

26
Q

interior intercostal

A

expiration

27
Q

innermost intercostal

A

synergist to inferior

28
Q

subcostals

A

in same plane as inner intercostals, can depress ribs

29
Q

transversus toracicus

A

depress costal cartilages

30
Q

posterior supply

A

intercostal arteries erupting from the aorta

31
Q

anterior supply

A

internal thoracic arteries erupt from subclavian arteries, may branch off into anterior intercostal arteries

32
Q

Brachiocephalic

A

from arms and head

33
Q

Accessory hemiazygous

A

from ribs, thoracic muscles
and spinal cord

34
Q

Hemiazygous

A

rom lower ribs and thoracic muscles, plus abdomen

35
Q

phrenic nerves

A

collect axons form C3-C5

36
Q

pericardial branch

A

innervation from pericardium and mediastinum

37
Q

blood supply to the lungs

A

-pulmonary arteries carry blood to the lungs
-pulmonary veins return it to the left atrium of heart

38
Q

the pericardium

A

-fibrous- connective tissue, superfical
-serous- surrounds the heart, deeper-lubricrates heart

39
Q

contaction

A

-isovolumic- increased in pressure, but not enough to move blood
-systole(ejection)- blood in squeezed out of the chamber

40
Q

relaxtion

A

-isovolumic- decrease in pressure, but not enough to move blood
-diastole(filing)- blood fills a chamber

41
Q

Splanchnic nerves

A

Branches that innervate
several important
abdominal ganglia

42
Q

Hemiazygous veins

A

Collect blood from
lower intercostals
and bronchial
veins

43
Q

Azygous veins

A

-Collect blood from
intercostals
 Empty into
inferior vena cava

44
Q

late distole

A

both sets of
chambers are relaxed and
ventricles fill passively.
-Atrial and ventricular state = relaxed
-AV valve= open
-Semilunar valve= closed

45
Q

artial systole

A

atrial contraction
forces a small amount of
additional blood into ventricles.
-Atrial state- contracting
-ventricular state-relaxed
-AV valve–open
-semilunar valves- closed

46
Q

Isovolumic ventricular
contraction

A

first phase of
ventricular contraction pushes
AV valves closed but does
not create enough pressure to
open semilunar valves
Atrial state= relaxed
ventricular state= isovolumetric contraction
AV valves= closing first heart sound
Semilunar valves=close not enough pressure

47
Q

Ventricular systole

A

as ventricular pressure
rises and exceeds
pressure in the arteries,
the semilunar valves
open and blood is
ejected.
Atrial=relaxed
ventricular state=contracting & ejection
AV valves= closed
semilunar valves= open

48
Q

Isovolumic ventricular
relaxation

A

as ventricles
relax, pressure in ventricles
falls, blood flows back into
cusps of semilunar valves
and snaps them closed.

anatomy (8 decks)

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