Anat Labs 12-15

Front 1

Pectinate muscle

Back 1

Makes up the walls of the atria

Front 2

Myocardium

Back 2

Muscle that makes up the walls of the ventricles

Front 3

Chordae tendinae

Back 3

Attach the cusps of the tricuspid and bicuspid valves to papillary muscles

Front 4

Sinoatrial node

Back 4

Pacemaker for the heart

Front 5

Internodal fibers

Back 5

Innervate the atria and cause them to contract

Front 6

Atrioventricular node

Back 6

Delays the action potential signal to allow the ventricles to fill before contracting

Front 7

What innervates the interventricular septum and walls of the ventricle

Back 7

Bundle of His, L and R bundles branches and purkinje fibers

Front 8

Diaphragm

Back 8

Separates the thorax and abdomen. Contraction causes inhalation of air into lungs

Front 9

Ascending sorta supplies o2 blood to the

Back 9

Heart

Front 10

Aortic arch supplies o2 blood to the

Back 10

Head, neck, and upper limbs

Front 11

Descending thoracic aorta supplies o2 blood to the

Back 11

Walls of the thorax (intercostal spaces)

Front 12

Abdominal aorta supplies o2 blood to the

Back 12

Abdominal organs, pelvis and pelvic organs, lower limbs

Front 13

Vertebral arteries ascend the neck through

Back 13

Transverse foramina in the cervical vertebrae then enter the cranium through the foramen magnum

Front 14

Arterial circle of Willis supplies blood to the external

Back 14

Brain

Front 15

External jugular veins drain into

Back 15

Subclavian veins

Front 16

Subclavian and internal jugular veins form the

Back 16

Brachiochephalic veins

Front 17

4 main named regions of the colon

Back 17

Right colon, middle colon, left colon, sigmoid colon

Front 18

R and L internal iliac arteries supply blood to

Back 18

Pelvis and gluteal regions

Front 19

R and L external iliac arteries supply blood to

Back 19

Lower limbs

Front 20

L gonadal vein drains into

Back 20

L renal vein

Front 21

R gonadal vein drains into the

Back 21

Inferior vena cava

Front 22

The meati do what to air as it heads towards the lungs

Back 22

Warm, moisten and clean

Front 23

Circoid cartilage

Back 23

Only ring shaped cartilage of the larynx

Front 24

Vocal ligaments attach to this cartilage

Back 24

Arytenoid cartilage

Front 25

Glottis some

Back 25

Superior opening to the larynx

Front 26

Some structure in the mediastinum include

Back 26

Heart, coronary vessels, esophagus, phrenic nerves, vague nerves, thymus, thoracic (lymphatic duct) and lymph nodes

Front 27

Which lung is larger

Back 27

The right lung is larger than the left lung bc of the location of the heart

Front 28

Inhalation is

Back 28

Active (requires muscles)

Front 29

Normal exhalation is

Back 29

Passive (no muscles required)

Front 30

Forceful exhalation is

Back 30

Active, required innervation and contraction of the internal intercostal muscles to increase thoracic cavity pressure