« previous next »

Author Question: To which anatomic structures do the ventral respiratory centers send motor signals during ... (Read 111 times)

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
on: Jul 16, 2018
To which anatomic structures do the ventral respiratory centers send motor signals during inspira-tion? 1. Diaphragm 2. Larynx 3. Pharynx 4. Sternocleidomastoid s
 
  a. 1, 2, and 3 only
  b. 2 and 4 only
  c. 1 only
  d. 1, 2, and 4

Question 2

Which of the following control the inhibitory neurons that switch off the inspiratory ramp signal? 1. Apneustic center 2. Pneumotaxic center 3. Pulmonary stretch receptors
 
  a. 1, 2, and 3
  b. 1 and 2 only
  c. 3 only
  d. 2 and 3 only


nickk12214

  • Sr. Member
  • ****
  • Posts: 332
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
Some inspiratory VRG neurons send motor impulses through the vagus nerve to the laryngeal and pharyngeal muscles, abducting the vocal cords and increasing the diameter of the glottis. Other VRG inspiratory neurons transmit impulses to the diaphragm and external intercostal mus-cles.

Answer to Question 2

ANS: D
The inhibitory neurons that switch off the inspiratory ramp signal are controlled by the pneumo-taxic center and pulmonary stretch receptors.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

LCritchfi

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 16, 2018
Correct answers!


nickk12214

  • Sr. Member
  • ****
  • Posts: 332
Reply #3 on: Jul 16, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

Did you know?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Internal structures of the eye Internal structures of the eye
The direction of signals conducted orthodromically through a typical multipolar neuron. The direction of signals conducted orthodromically through a typical multipolar neuron.
Diversity in hemoglobin structures Diversity in hemoglobin structures
Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011 Guidelines for Field Triage of Injured Patients, Centers for Disease Control, 2011
Structures and names of the nucleosides and nucleotides of RNA and DNA Structures and names of the nucleosides and nucleotides of RNA and DNA
Structures of the Human Eye Structures of the Human Eye
Video: Steps of glucose catabolism

For a complete list of videos, visit our video library