BIOS 1140 Exam 3 Quizzes

the four hamstrings

semitendinosus, semimembranosus, short and long head of biceps femoris

What joints do the hamstring muscles cross

hip and knee

what nerve innervates the hamstring muscles

sciatic

where does the sciatic nerve emerge from

sacral nerve plexus

what is unusual about the fibularis tertius muscle

only 63% of people have it

two nerves that make up the sciatic nerve

tibial and common fibular nerves

what muscles allow for expansion of the rib cage for inhalation

diaphragm and external intercostal

four pairs of muscles that allow compression of torso and trunk

rectus abdominis

external obliques

internal obliques

transversus abdominis

two pelvic diaphragm muscles that support the weight of internal organs

levator ani and coccygeus

popliteal artery branches inferiorly into what arteries

tibial and fibular

most inferior lower limb artery, arches over the top of the plantar arch

arcuate

Atrioventricular valves

tricuspid and bicuspid

Semilunar valves

pulmonary and aortic

what chamber does the pulmonary trunk exit

right ventricle

pulmonary arteries carry

deoxygenated blood to lungs

pulmonary veins carry

oxygenated blood to left atrium

P wave represents

atrial depolarization

QRS complex represents

ventricular depolarization

T wave represents

ventricular repolarization

first external exchange

oxygen diffuses out of inhaled air into alveoli to enter blood

CO2 diffuses out of deoxygenated blood into the alveoli to be exhaled

Internal gas exchange

oxygen diffuses out of blood into tissues

CO2 diffuses out of tissues into blood

left lung

only has two lobes

first valve in the alimentary canal

cardiac valve, esophagus enters the stomach

second valve in alimentary canal

pyloric valve, between the distal end of the stomach and duodenum

third valve in the alimentary canal

ileocecal valve, between ileum of small intestine and cecum

fourth valve in the alimentary canal

internal and external anal sphincters

ligament that suspends the liver from the diaphragm

falciform

functional unit of the liver

hepatic lobule

first nutrient to undergo enzymatic breakdown

carbohydrates

enzyme that breaks down carbs

salivary amylase

second nutrient to undergo enzymatic breakdown

protein

enzyme that breaks down protein

pepsin

third nutrient to undergo enzymatic breakdown

fat

enzyme that breaks down fat

lipase

segments of small intestine in superior to inferior order

duodenum, jejunum, ileum

junction of the small and large intestine

ileocecal valve

appendix is the reservoir for what

beneficial bacteria

what does beneficial bacteria provide for the body

Vitamin K, B vitamins, and support immune system function

segments of large intestine proximal to distal

cecum

ascending colon

transverse colon

descending colon

sigmoid colon

rectum

anal canal

5 major arteries the branch off abdominal aorta

inferior phrenic

middle suprarenal

renal

superior mesenteric

inferior mesenteric