Shared Flashcard Set

Details

Ch. 22
Heart
27
Anatomy
Undergraduate 2
11/12/2013

Additional Anatomy Flashcards

 


 

Cards

Term

 

 

 

A healthy, adult heart beats...

Definition

 

 

75 x/minute, ~4500 x/hour, 108,000 x/day

Term

 

 

 

Cardiac output

Definition

 

 

 

amount of blood pumped from one ventricle per minute

Term

 

 

 

 

How many times can cardiac ouput increase during activity?

Definition

 

 

 

5-6

Term

 

 

 

 

Pulmonary Circuit

Definition

 

 

includes the right atrium and ventricle along with the pulmonary arteries and veins; carries blood to the lungs via pulmonary artieries to reduce CO2 and replenish oxygen levels in the blood before returning to the heart in pulmonary veins; blood returns to the left side of the heart

Term

 

 

 

Systemic Circuit

Definition

 

 

 

includes the left atrium and ventricles along with all other named vessel; carries blood to the perpheral organs and tissues of the body

Term

 

 

 

Where is the heart located?

Definition

 

 

between lungs in mediastinum; tilted and rotated so the right side/border is located more anteriorly with the left side/border is located more posterior

Term

 

 

 

What is the size of the heart

Definition

 

 

 

fist sized; < 1 pound

Term

 

 

 

 

What is the heart covered with?

Definition

 

 

 

pericardium and serous fluid

Term

 

 

Fibrous pericardium

Definition

 

 

 

outer dense fibrous connective tissue that attaches to teh diaphragm and the great vessels

Term

 

 

 

Serous pericardium

Definition

 

 

 

parietal layer= lines the innter surface of the fiborus pericaridum

Term

 

 

 

Visceral pericardia

Definition

 

 

covers the outside of the heart; aka epicardium

 

 

Term

 

 

 

 

Internal Structure of Heart

Definition

 

 

4 Chambers  = (Left/Right Atriums) and (L/R Ventricles)

Term

 

 

 

Auricles

Definition

 

 

 

wrinkled, flaplike extension on the anterior of each atrium

Term

 

 

 

L/R chambers are seperated by the...

 

Definition

 

 

 

septum

Term

 

 

 

L/R atriums are seperated by the...

Definition

 

 

 

interatrial septum

Term

 

 

 

L/R ventricles seperated by the.....

Definition

 

 

 

interventricular septum

Term

 

 

 

Right atrium

Definition

 

 

 

receives venous blood from the systemic circuit and the heart tiself; 3 major vessels empty into the right atrium

Term

 

 

 

Superior vena cava

Definition

 

 

 

drains blood from the head, neck, upper limbs and superior regions of the trunk

Term

 

 

 

inferior vena cava

Definition

 

 

 

 

drains blood from the lower limbs and trunk

Term

 

 

 

coronary sinus

Definition

 

 

 

 

drains blood from the heart wall

Term

 

 

 

Right ventricle

Definition

 

 

receives deoxygenated venous blood from the right atrium

Term

 

 

Trabeculae carneae

Definition

 

 

 

each internal ventricular wall has characteristic large, smooth, irregular muscles ridges

Term

 

 

 

papillary muscles

Definition

 

 

 

3 cone shaped muscular projections in the right ventricle

Term

 

 

 

 

Conus Arteriosus

Definition

 

 

 

a smooth walled cone region where the superior end of the right ventricle narrows into

Term

 

 

 

 

Left Atrium

Definition

 

 

 

blood travels through the pulmonary veins to the left atirum; has 4 pulmonary veins;

Term

 

 

 

Left Ventricle

Definition

 

 

wall is 3x thicker than the right ventricle; trabeculae carneae is more prominent

Supporting users have an ad free experience!