BISC 101 Lecture Notes - Lecture 15: Medulla Oblongata, Hemoglobin, Myoglobin

19 views1 pages

scarletcicada217

22 Apr 2017

School

Simon Fraser University

Department

Biological Sciences

Course

BISC 101

Professor

Onkar Bains

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

Concept d: gas exchange occurs across specialized respiratory surfaces (topic 10) ^air inhaled through the nostrils pharynx larynx trachea bronchi bronchioles alveoli=site of gas exchange. ^gas e(cid:454)(cid:272)ha(cid:374)ge are one cell layer thick and have very large surface area. ^a(cid:373)phi(cid:271)ia(cid:374)s (cid:271)(cid:455) positive pressure breathing, which pushes air down the trachea. ^mammals ventilate by negative pressure breathing, which pulls air into the lungs. ^the medulla oblongata regulates the rate and depth . ^the pons moderates basic breathing rhythm by smoothing out the transitions between inhalations and exhalations. ^sigmoidal shape of the (cid:272)urve co-operative binding of oxygen to hemoglobin. ^bohr shift to left means o2 binds strongly to hemoglobin. ^bohr shift to the right means o2 is released readily by hemoglobin.

Related Questions

QUESTION 1

Cellular respiration uses________to produce energy and releases ________as a waste product.

		O₂; CO₂
		CO₂; O₂
		ATP; G3P
		G3P; ATP

5 points

QUESTION 2

Select all of the following that compose the conducting pathways in the respiratory system.

		nasal cavity
		Pharynx
		Larynx
		Trachea
		Bronchi
		Alveoli

5 points

QUESTION 3

Match each structure with its' function.

- A. B. C. D. E. F. G.	Nasal Cavity
- A. B. C. D. E. F. G.	Alveoli
- A. B. C. D. E. F. G.	Larynx
- A. B. C. D. E. F. G.	Trachea
- A. B. C. D. E. F. G.	Bronchi
- A. B. C. D. E. F. G.	Bronchioles
- A. B. C. D. E. F. G.	Pharynx

A.	Throat
B.	Very small branches of bronchi within the lungs.
C.	Larger branching passages for air within the lungs.
D.	Location of gas exchange with the blood.
E.	Carries air from larynx and branches into bronchi.
F.	Location of the voice box, earliest location where only air passes.
G.	Carry air into the pharynx, earliest location of cleaning, warming, and humidifying the air.

8 points

QUESTION 4

Mammals are able to inhale because increasing the volume of the thoracic cavity will decrease the pressure within the lungs. This is called_____

		pump-controlled breathing
		forced inflation breathing
		negative-pressure breathing
		stretch breathing

6 points

QUESTION 5

Indentify which muscles are primarily responsible for quiet (normal, relaxed) inspiration?

		diaphragm
		internal intercostals
		sclaenes
		abdominal muscles

coffeepig115

BISC 101 Lecture Notes - Lecture 15: Medulla Oblongata, Hemoglobin, Myoglobin

Document Summary

Get access

Related Documents

BISC 101 Lecture Notes - Lecture 13: Fetus, Diastole, Extracellular Fluid

BISC 101 Lecture Notes - Lecture 17: Countercurrent Exchange, Gas Exchange, Intercostal Muscle

BISC 101 Lecture Notes - Lecture 19: Cellular Respiration, Cooperative Binding, Partial Pressure

Related Questions