Question

1 points QUESTION 27 Alpha and beta receptors are classes of receptors adrenergic QUESTION 28 6 points In what ways are the autonomic nervous system and the somatic nervous system different? (You will have 1 point for each example; ther is all together 6 importent differences) For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac), T T T 쫓 : Paragraph :, : Arial The Path: p Words:0 Click Save and Submit to save and submit. Click Save All Answers to save all answers Save All Save and 10

Answer 1

Answer: 27.

The alpha and beta receptors are the classes of ADRENERGIC receptors.

Alpha, Beta1 and Beta2 receptors belong to Sympathetic receptors or adrenergic receptors. Alpha receptors are found in arteries. Beta1 are located in heart. Beta2 are located in bronchioles of lungs and arteries of skeletal muscles. In response to epinephrine, blood pressure increases, heart rate increases, bronchioles dilate, vessels of skeletal muscles dilate.

Answer: 28.

Differences:

Somatic nervous system	Autonomic nervous system
It controls voluntary movement of body	It controls involuntary movements of body
Causes excitatory response at effector	may cause excitatory or inhibitory response at effector
Releases acetylcholine	Releases Acetylcholine or Norepinephrine
Detects touch, pain, smell, temperature, noise, light, taste	Detects blood pressure, pH
Composed of thick myelin nerve fibres	Composed of both thick and thin myelin nerve fibres
Branches are spinal and cranial nerves	Branches are Sympathetic and Parasympathetic nerves