Human Physiology wiz needed 90. Place the following in correct sequence from ext

Question

Human Physiology wiz needed

90. Place the following in correct sequence from exterior to interior: d. primary bronchus 2. bronchiole 3. trachea 4. terminal bronchiole 5. tertiary bronchus 6. pharynx a. 6,3,1,5,2,4 b. 6,3,2,4,1,5 c. 3,6,2.4,1.5 d. 3,6,1,5,2,4 e. 1,3,6,5,2.4 91. Oxygen and CO are similar in the following respects they are both transported in blood b. they both bind to hemoglobin c. a. they both can be "loaded" and "unloaded" according to their partial pressure d. all of the above e. none of the above 92. The rate of respiration a. is regulated by respiratory centers found in the medulla and the pons b. can be modulated when the oxygen demand increases c. can be modulated by voluntary inputs from the cerebral cortex d. is sensitive to the arterial blood pH e. all of the above 93. The ONLY reason we respire is that a. OXYGEN IS THE FINAL ELECTRON ACCEPTOR IN THE ETS b. for fun c. we need oxygen to live d. cells will die without oxygen e. all of the above 94. If an incision has to be made in the small intestine to remove an obstruction, the first layer of tissue to be cut is the: a. muscularis externa. b. mucosa. c. serosa. d. submucosa. 95. One of the major functions of the large intestine is to: a. secrete digestive enzymes. b. reabsorb 95% of ingested water. c. regulate the release of bile. d. break down hemoglobin.

Explanation / Answer

90. Answer is option A. 6,3,1,5,2,4.

Pharynx forms the upper respiratory tract and bronchioles are the terminal parts of the lower respiratory tract.

91. Answer is option D. All of the above.

Oxygen and carbon-dioxide are both carried by hemoglobin in the RBC. They are loaded and unloaded at the cellular level in the capillaries.

92. Answer is option E. All of the above.

The rate of respiration is controlled at multiple levels at the respiratory centres in the brain, chemoreceptors in the large blood vessels which sense blood pH and regulate rate of respiration accordingly. It is also controlled by voluntary activity such as physical exercise and purposeful hyperventilation.

93. Answer is option A.

Oxygen is essential for every cell in the body for cellular respiration. If electron transport chain is blocked due to lack of oxygen, the ATP synthesis is stopped which results in death of the cell.

94. Answer is option C. Serosa.

Serosa is the outermost layer of small intestine. It is followed by mistake layers, submucosa and mucosa.

95. Answer is option B. Reabsorb 95% of ingested water.

Large intestine does not secrete any digestive enzymes. Bile release is regulated by gall bladder.

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