Question

The Adrenergic Receptor Sites on the heart are: A. alpha-1 B. alpha-2 C. beta-1 D. beta-2...

The Adrenergic Receptor Sites on the heart are:

A. alpha-1

B. alpha-2

C. beta-1

D. beta-2

E. both alpha-1 AND beta-1

F. both alpha-2 AND beta-2

Science   Anatomy-And-Physiology   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The Adrenergic Receptor Sites on the heart are:

ans- beta-1 receptors

both beta-1 and beta -2 receptors present but beta-1 is more dominant and active receptor.

these are stimulated by epinephrine and norepinephrine and work as agonist.

(agonist is substance when binds with receptor enhance or promote receptors activity.)

once these activated it increase the heart rate.

it increase the heart contraction more

it is also present at the juxtaglomerular cells of kidney so it promotes renin release also.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
1. Generally speaking which is best matched for sympathetic adrenergic receptor combination. A) Alpha 2: heart...
1. Generally speaking which is best matched for sympathetic adrenergic receptor combination. A) Alpha 2: heart B) Beta 1: lungs C) Alpha 1: heart D) Beta 2: lungs E) None are matched correctly 2. A narcotic that affects muscle contraction would affect the release of______ A) histamine B) norepinephrine C) dopamine D) adrenaline E) acetylcholine 3. A drug that affects only the sympathetic nervous system post ganglion at the source, most likely affects the release of___. A) histamine B) norepinephrine...
Which of the following statements is FALSE? a. Binding of norepinephrine (NE) to an alpha-adrenergic receptor...
Which of the following statements is FALSE? a. Binding of norepinephrine (NE) to an alpha-adrenergic receptor is usually excitatory, and binding to a beta-adrenergic receptor is usually inhibitory. b. The pulsatile secretion of hormones is needed to prevent receptor downregulation by target cells. c. A "pharmacological" dose refers to an abnormally high concentration of a substance—more than is normally present in the bloodstream. d. Autonomic motor nerves form synapses known as synapses en passant. e. A drug that blocks the...
1. Drug A is an unknow adrenergic antagonist. It is given to a patient for treatment...
1. Drug A is an unknow adrenergic antagonist. It is given to a patient for treatment of hypertension. The patient notes side effects including weakness due to a decrease in heart rate, difficulty breathing and ankle edema. Drug A is bonding to a: a. Muscarinic receptor b. Cholinergic receptor c. Adrenergic receptor d. Nicotinic receptor 2. In regards to Drug A, an unknown adrenergic antagonist given to patients with hypertension, note the specific name of the receptor(s) that Drug A...
The activity of β-adrenergic receptors is regulated by a. Phosphorylation by β-adrenergic receptor kinase (GRKs) b....
The activity of β-adrenergic receptors is regulated by a. Phosphorylation by β-adrenergic receptor kinase (GRKs) b. Phosphorylation by Protein Kinase A (PKA) c. Agonist binding d. b and c e. a, b and c
Two types of drugs used to treat primary hypertension are calcium channel blockers and beta (adrenergic...
Two types of drugs used to treat primary hypertension are calcium channel blockers and beta (adrenergic receptor) blockers. Both types of drugs decrease cardiac output. Mark all true statements: a. these drugs would both lower mean arterial pressure (MAP) b. these drugs would also affect bronchial diameter c. these drugs would both increase stroke volume d. these drugs would both increase afterload e. these drugs both affect smooth muscle tone
Which of the following are cholinergic receptors a. Alpha-1 type b. Beta-2 type c. Muscarinic type...
Which of the following are cholinergic receptors a. Alpha-1 type b. Beta-2 type c. Muscarinic type d. all of the above e. none of the above
1: What type of receptor is on the sympathetic postganglionic neuron? a) alpha/beta receptors b) nicotinic...
1: What type of receptor is on the sympathetic postganglionic neuron? a) alpha/beta receptors b) nicotinic receptors c) muscarinic receptors 2: Match the receptor with the mechanism it uses to effect the body nicotinic receptor       [ Choose ]            activates G proteins            deactivates adenylate cyclase            opens ligand-gated sodium channel            activates adenyate cyclase            activates 2nd messengers to cause calcium release            increases levels...
Which of the following mechanisms underlies alcohol-induced dementia (blackouts)? a. GABAA receptor down-regulation b. Glutamate receptor...
Which of the following mechanisms underlies alcohol-induced dementia (blackouts)? a. GABAA receptor down-regulation b. Glutamate receptor antagonism c. Dopamine receptor antagonism d. Both a and b, but not c e. All of the above 41. Which of the following is a symptom associated with severe alcohol withdrawal (i.e., delirium tremors)? a. Agitation/irritability b. Convulsions c. Delusions/hallucinations d. Tachycardia (rapid heart rate) e. All of the above 42. Which of the following is a pharmacotherapy for assisting in ethanol detoxification? a....
5. As alpha decreases, beta a. is unaffected b. decreases c. increases d. none of the...
5. As alpha decreases, beta a. is unaffected b. decreases c. increases d. none of the above 6. What is one advantage of using a repeated-measures design over an independent samples design? 7. What is one disadvantage of using a repeated-measures design over an independent samples design?
The alpha-2 receptor is often located presynaptically and binds released norepinephrine to antagonize further transmitter release....
The alpha-2 receptor is often located presynaptically and binds released norepinephrine to antagonize further transmitter release. What would be the effect of adding an alpha-2 agonist? A. increased diffusion of NE from the synaptic cleft B. Decreased NE release from depolarization C. Decreased Synthesis of NE D. Increased excitation to the post synaptic cell E. Increased recycling of NE
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT