Brainscape's Knowledge GenomeTM

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


See full index

Human Physiology lab > Lab 8 > Flashcards

Lab 8 Flashcards

1
Q

Increase contraction force and heart rate caused my which ion?

A

Increased Ca2+

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

Which ion decreases heart rate?

A

Excess Na+

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

Which ion can impair cardiac function?

A

Abnormally high K+ levels

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

What drugs is cholinergic and mimics effects of AcH

A

Pilocarpine

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

Which drug is a cholerginic drug but affects are different than pilocarpine

A

Atropine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What drug used to treat heart failure and decreases heart rate while increasing contractility?

A

Digitalis

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

Parasympathetic innervation

A

Vagus nerve

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

Sympathetic innveration

A

Norepinephrine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are parasympathetic effects?

A

Decrease heart rate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are effects of sympathetic innervation

A

Increase heart rate and ventricular contractility

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

An early contraction that occurs before SA node is ready to fire

A

Extra systole

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

What does an extra systole do?

A

Produces smaller contraction
Pushes less blood
Followed by compensatory pause

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Period from the end of one heart contraction to the end of the next

A

Cardiac cycle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is systole

A

Contraction

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

What is diastole

A

Relaxation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Parts of cardiac cycle

A

Electrical and mechanical events during one heartbeat
Systole and diastole

17
Q

Coordinates sequence of contraction- relaxation events in heartbeat

A

Conduction system

18
Q

Responsible for hearts ability to intimidate own electrical activity automatically and involves leak channels are part of which system

A

Conduction system

19
Q

Process of heart filling with blood during relaxation

A

Ventricular filling

20
Q

Ventricular filling is critical for

A

Hearts ability to contract effectively

21
Q

What does shortened relaxation of ventricular filling lead to

A

Less blood filling which affects contraction length

Human Physiology lab (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions