Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Human Anatomy & Physiology > the heart > Flashcards

the heart Flashcards

1
Q

what is the heart ?

A

A muscolar pump whih functions to drive blood around the body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what is the size of a heart ?

A

a clenched fist

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Functions of the heart

A
  1. Transport of oxygen to the body
  2. Transport of nutrients to the bisy
  3. Removal of waste products
  4. Immune system
  5. aracrine system
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Functions of the heart

A
  1. Transport of oxygen to the body
  2. Transport of nutrients to the bisy
  3. Removal of waste products
  4. Immune system
  5. aracrine system
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what are the 2 parallel circulatory systems in the heart ?

A
  1. Pulmonary circulation
  2. Systematic circulation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

where to veins carry blood ?

A

Veins always carry blood to the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

where do arteries carry blood ?

A

Arteries carry blood away from the heart

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

wat does the vene cava do ?

A
  • Carries deoxygenated blood from body to heart
  • Superior vene cava carries blood from head to upper body
  • Inferior vena cava carries blood from lower body
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What do pulmunary veins do ?

A
  • Carries oxygenated blood from lungs to heart
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What does the aorta do ?

A
  • Carries oxygenated blood from the heart to body
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what does the pulmonary artery do ?

A

Carries deoxygenated blood from heart to lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what does the pulmonary artery do ?

A

Carries deoxygenated blood from heart to lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What do ventriecles do ?

A
  • Responsible for pumping blood through arteries
  • Thick muscular wall
  • Left ventricle has thicker wall then right because it does more work
  • The 2 ventricles are separated by a muscular septum
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the Atria and its characteristics?

A
  • Atrium means hall
  • Receive incoming blood from veins
  • Contraction of atria pushes blood into ventricles
  • Thin walls
  • Valves prevent blood from ventricles going back into atria
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What are the names of the 2 semilunar valves ?

A

Pulmunary valve & Aortic valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What does the pulmonary valve do ?

A
  • Regulated blood flow from right ventricle into the pulmunary artery
16
Q

What does the aortic valve do ?

A

Regulates blood flow from the left ventricle into the aorta

17
Q

What are the 2 atrioventricular valves ?

A

Mitral valve & Tricuspid valve

18
Q

What does the mitral valve do ?

A
  • Shaped like a Bishop’s hat (a mitre)
  • Regulates blood flow from the left atrium into the left ventricle
  • Two leaflets (bicuspid)
19
Q

What doe the tricuspid valve do ?

A
  • Regulates blood flow from the right atrium into the right ventricle
  • Three leaflets (tricuspid)
20
Q

what does the Coronary vasculature
do ?

A

Supplies oxygenated blood to the heart muscle

20
Q

what does the Coronary vasculature
do ?

A

Supplies oxygenated blood to the heart muscle

21
Q

what are the structure of the hart wall ?

A
  1. Pericardium :Outer layer of connective tissue
  2. Epicardium Role in homeostasis and regeneration
  3. Pericardial cavity: contains lubricant
  4. Myocardium: the contractile part of the heart
  5. Endocardium: inner layer of protective epithelium
22
Q

What is a systole ?

A

Squeezing

23
Q

What is a diastole ?

A

Dilation

24
Q

what are cardiomyocytes ?

A

striated muscle cells containing filaments of contractile proteins

24
Q

what are cardiomyocytes ?

A

striated muscle cells containing filaments of contractile proteins

25
Q

What is a conduction system ?

A

A network of nerve cell-like cardiomyocytes which generate and propagate electrical impulses which serve to control heart contraction

26
Q

How does the conduction system work?

A
  • The Sino-atrial (SA) node
  • The atrio-ventricular (AV) node
  • The Bundle of His
27
Q

Why are cardiomyocytes connected by gap junctions?

A

To permit transmission of the electrical signals required to coordinate contraction

28
Q

The function of the atrio-ventricular node is to:

A

Delay the transmission of action potentials to the ventricles until after the atria have contracted

Human Anatomy & Physiology (24 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions