Lab 3

Question 1

External Features of the Heart

Answer 1

Left / Right Atrium: top chambers

Left / Right Ventricle: bottom chambers

Apex

Pericardium

Coronary Sulcus

Anterior / Posterior interventricular sulcus (grove between ventricles)

Question 2

Internal Features of the Right Atrium

Answer 2

Opening for Superior Vena Cava (blue vessel on right side goes top to bottom)

Opening for Inferior Vena Cava

Opening for the Coronary Sinus (small medial hole)

Fossa Ovalis (large medial hole)

Right Atrioventricular Valve (moves to right ventricle, has chordae tendinae)

Question 3

Internal Features of Right and Left Ventricles

Answer 3

Right / Left Atrioventricular Valve

Papillary Muscle (Attaches chordae tendineae to wall)

Chordae Tendineae

Trabeculae Carneae (background “noodles”)

Aortic Semilunar valve

Interventricular Septum

Question 4

Internal Features of the Left Atrium

Answer 4

Openings for the pulmonary veins

Left atrioventricular valve

Fossa ovalis (large medial hole)

Interventricular Septum (both left and right)

Question 5

Posterior Vessels of the Heart

Answer 5

Aortic Arch

Descending Aorta (ascending is anterior)

Left and Right Pulmonary Arteries

Left and Right Pulmonary Veins (2 sets of 2)

Question 6

Vessels of the Aortic Arch

Answer 6

brachiocephalic trunk (branches to right CC and right sub)

left common carotid artery (more medial)

left subclavian artery (right is a division of brachiocephalic trunk)

Question 7

Anterior Vessels of the Heart

Answer 7

Pulmonary Trunk (tucked under arch)

Right coronary Artery (in coronary sulcus)

Left Coronary Artery (just below and to the side of the trunk)

Question 8

Vessels draining the heart

Answer 8

Great Cardiac Vein (in the anterior ventricular sulcus)

Middle Cardiac Vein (in the posterior interventricular sulcus)

Coronary Sinus (Posterior portion of the coronary sulcus)

Question 9

Muscles of the Eye

Answer 9

Medial Rectus Muscle

Lateral Rectus Muscle

Superior Rectus Muscle

Inferior Rectus Muscle

*Rectus means straight

Superior Oblique Muscle Inferior Oblique

Question 10

Three tunics of the eye

Answer 10

Fibrous Tunic

Vascular Tunic

Neural Tunic (not bold)

Question 11

Fibrous tunic

Answer 11

Sclera: the white

Cornea

Question 12

Vascular tunic

Answer 12

Choroid: most of the tunic, posterior, darkly pigmented

Ciliary body

Ciliary Muscles: shape the lens Pupil

Question 13

Neural Tunic

Answer 13

Retina

Blind Spot

Optic Disc

Optic Nerve (II)

Macula Lutea

Fovea centralis

Question 14

Behind the pupil

Answer 14

lens (which is held up by…)

suspensory ligaments

Question 15

Anterior Cavity

Answer 15

Know this term,in front of lens

can be divided between anterior and posterior chamber

Question 16

Posterior Cavity

Answer 16

Know this term, behind the lens

vitreous humor

Question 17

Ascending aorta branches into…

Answer 17

right and left coronary arteries

Question 18

Arteries to head and neck

Answer 18

Divisions of common carotid:

• Internal carotid artery: direct to internal skull
• External carotid: neck and external skull superficial

temporal “artery”

Question 19

Arteries to the upper limbs

Answer 19

axillary artery: continuation of subclavian after passing first rib brachial artery: continuation of axillary. splits to

• radial (lateral)
• ulnar (both join to)

superficial palmar arch

Question 20

Arteries of the thorax

Answer 20

From subclavian - internal thoracic (leads to…)

• anterior intercostal
• descending thoracic aorta to…
• posterior intercostal arteries

Question 21

Branching from descending abdominal aorta

Answer 21

celiac trunk

superior mesenteric artery

inferior mesenteric

common iliac artery

Question 22

Arteries of the pelvic region

Answer 22

common illiac branches to:

internal and external iliac artery

Question 23

Arteries to lower limbs

Answer 23

femoral artery (continues from external iliac along anterior thigh)

popliteal (continues from femoral along posterior lower thigh)

anterior tibial

posterior tibial

fibular

Question 24

Veins from head and neck

Answer 24

internal / external jugular

dural venous sinuses

Question 25

Veins from upper limbs (deep)

Answer 25

radial

ulnar

brachial

axillary

subclavian

Question 26

Veins from upper limbs (superficial)

Answer 26

cephalic vein (more lateral)

basilic vein

median cubital vein (connects the two down by the elbow)

Question 27

Veins of the thorax (anterior)

Answer 27

Anterior intercostal

internal thoracic

Question 28

Azygos system of the thoracic

Answer 28

hemiazygos vein

posterior intercostal veins

azygos vein

Question 29

Veins of the superior vena cava

Answer 29

subclavian vein

external jugular vein

Internal jugular vein

brachiocephalic vein (2, each formed by joined previous 3, left and right branch to svc)

Question 30

Veins of inferior vena cava

Answer 30

internal iliac vein

external iliac vein

common iliac vein

Question 31

Veins from lower limb (deep)

Answer 31

femoral vein

popliteal

anterior tibial

posterior tibial

fibular

Question 32

Veins from lower limb (superficial)

Answer 32

great saphenous vein

small saphenous vein

Question 33

Tonsils

Answer 33

palatine tonsils (typical)

pharyngeal tonsils (way up there)

lingual tonsils (tongue)

Question 34

Lymphatic organs

Answer 34

lymph nodes

spleen

Question 35

thoracic duct

Answer 35

located anterior to the second lumbar vertebra

Question 36

Answer 36

Question 37

What is this

Answer 37

cochlea

Question 38

eye histology

Answer 38

Question 39

Heart anatomy

Answer 39

intercalated disc

nucleus