EXAM 3 - BQ'S WEEK 1

Ligamentum arteriosum

vestige of the fetal ductus arteriosus

The right coronary artery supplies (know 2/4)

right atrium, most of the right ventricle, part of the left ventricle, the sa and av nodes

The left coronary artery supplies (know 2/4)

left atrium, most of the left ventricle, part of the right ventricle, the interventricular septum

Transverse pericardial sinus (BQ only)

connects the left and right sides of the pericardial cavity

Oblique pericardial sinus (BQ only)

a blind “cul-de-sac”

Fossa ovalis

“oval depression” in the interatrial septum indicating the location of the fetal foramen ovale - where blood was shunted from right atrium to left atrium in the fetus

Membranous part of the interventricular septum

thin upper-most part. the side of ventricular septal defects (common birth defects)

Trabeculae carnae

fleshy beams. ridges of cardiac muscle

Mitral valve

mitral = shaped like a “bishop’s hat” (a miter). two cusps

What makes up the descending aorta?

thoracic and abdominal

Gonadal arteries

in females these are the ovarian arteries; in males they are the testicular arteries

Hemiazygous vein

drains the lower left chest wall

Accessory hemiazygos vein

drains the upper left chest wall

Carotid body

a chemoreceptor

Carotid sinus

it is a baroreceptor

What does COW stand for?

Circle of Willis

Superior pancreaticoduodenal artery

supplies the head of the pancreas

Cystic artery

cystis = bladder. supplies the gallbladder

Superior rectal artery

the continuation of the IMA into the pelvic cavity — to the upper rectum

Inferior mesenteric vein

drains the descending colon, sigmoid colon, and rectum. tributary of the splenic vein

red and white pulp

the body’s “oil filter” — it removes old worn blood cells from the blood

median cubital vein

important in venipuncture procedures (blood draws)

great saphenous vein

longest vein in the body

thoracic duct

conducts 75% of the body’s lymph

frenulum of tongue

connects inferior surface of tongue to floor

sublingual caruncles

bumps that contain openings of ducts of the submandibular salivary glands (for gleeking)

uvula

what is the dangly thing in the back of the throat?

wisdom teeth

the 3rd molars

maxillary teeth

innervated by the superior alveolar nerves

mandibular teeth

innervated by the inferior alveolar nerves

intrinsic muscles of tongue

actions: flattens, shortens, or broadens tongue, curls its tip

styloglossus

action: retrudes tongue (pulls it posterior)

hyoglossus

action: depresses tongue (pull toward hyoid)

lingual nerve

general sensation: anterior 2/3 of tongue

chorda tympani nerve

taste buds: anterior 2/3 of tongue

glossopharyngeal nerve

general sensation and taste: posterior 1/3

hypoglossal nerve

motor to intrinsic and extrinsic muscle

pylorus

pylorus = gatekeeper

pyloric sphincter

circular smooth muscle — when contracted, it regulates the amount and consistency of chyme entering the duodenum

appendix

function uncertain — possibly a lymphoid organ or bacteria factory

sigmoid colon

twisted into a shape like a greek sigma

anal canal

inclines posteriorly — this bend between rectum and anal canal provides for anal continence

coronary ligament

the layers of the ligament surmount the liver like a crown

what are the functional parts of the L liver?

left lobe of liver, caudate lobe, quadrate lobe

what are the functional parts of the r liver

right lobe of liver

round ligament of liver

obliterated fetal umbilical vein

ligamentum venosum

obliterated fetal ductus venosus

the hepatic “H”

formed by the two sagittal fissures and the porta hepatis