unit 3

Deep thoracic muslces

intercostal muscles

external intercostal muscles

internal intercostal muscles

innermost intercostal muscles

external intercostal muscles

elevate ribs causing inhalation

internal intercostal muscles

depress ribs causing exhalation

innermost intercostal muscles

depress ribs causing exhalation

boyles law

as volume increases gas pressure decreases

external intercostal m

are going to help with inhalation by elevating ribs up and out

internal intercostal m

are going to help with expiration

bucket handle

left up and out ribs increasing the horizontal distance , from each handle increasing volume in thoracic cavity

water pump

sternum up and out

muscles of inspiration

external intercostals

diaphragm

sternocleidomastoid

pectoralis major

core muscles of inspiration

external intercostals

diaphragm

accessory muscles inspiration

sternocleidomastoid

pectoralis minor

muscles of expiration

internal intercostals

diaphragm

abdominals

quadratus lumborum

core muscles expiration

internal intercostals

diaphragm

accessory muscles expiration

abdominals

quadratus lumborum

COPD

chronic obstructive pulmonary disease

what mediastinum is the heart in

middle

left anterior descending artery( widow maker)

block in artery can result in dealth

coronary sinus

where majority of the cardiac veins dumps into

oval fossa

was a hole between the two atrium in the fetus then closes after birth

left ventricle is thicker because

it has to push blood to the whole body

papillary muscles

attached to tendinous cords( heart strings) let them close perfectly

trabeculae carnae

flat to the wall

crista terminalis

triggers your impulse to contract heart

lub

beginning of systole

dub

end of systole beginning of diastole

pacemaker of the heart

sinu atrial nodes

pacemaker

keep 60bpm

not going to rise or drop really low

sympathetic

fight or flight

sympathetic trunk

parasympathetic

rest and digest

vagus nerve

with a heart attack

brain is unable to distinguish between visceral sensory and somatic sensory since there on they share spinal cord levels

what muscles help exhalation (internal/ innermost intercostal muscles)

Im going in on my ex

what muscles help inhilation ( external intercostal muscle)

My ex is going in on me

Ligament teres

round ligament of liver

portal trial

portal vein

proper hepatic a

common bile duct

Can remove what percentage of the liver and it will regrow

what is the most commonly injured abdominal organ

Pancreas location

between the thoracic spine and stomach

exocrine gland

important digestive gland as it produces and secretes digestive enzymes into the duodenum breaking down carbs, proteins , and fats in food

endocrine gland

regulates blood sugar levels by producing and secreting the hormones insulin and glucagon into the blood stream

Midgut

distal half of duodenum to splenic flexure transverse colon

foregut

distal esophagus to proximal half of duodenum ( including liver, GB, pancreas / spleen)

Hindgut

The rest ends at proximal rectum

portal system

blood from

GI