Question

1. Define “Tidal Volume.”

   		a. Volume of air inhaled and exhaled in a single normal breath.
   		b. Maximal air volume that can be exhaled after maximal inhalation.
   		c. Volume of air remaining in lungs even after maximal expiration.
   		d. Proportion of blood volume used to carry oxygen.

QUESTION 6

1. Choose the correct pair of structures of the ear AND division of the ear.

   		a. Pinna; Inner ear
   		b. Cochlea; Middle ear
   		c. Eustachian tube; Outer ear
   		d. Incus; Middle ear

  

QUESTION 7

1. The ____________ cycle is the series of changes associated with oocyte maturation and the __________ cycle is the change in the endometrial lining.

   		a. Uterine ….. Ovarian
   		b. Negative feedback ….. Positive feedback
   		c. Ovarian ….. Uterine
   		d. Positive feedback ….. Negative feedbac

QUESTION 8

1. What percentage of Oxygen is bound to the hemoglobin in blood?

   		a. 10%
   		b. 2%
   		c. 98%
   		d. 70%

QUESTION 9

1. Which of the following is an actual class of receptor?

   		a. Touchreceptors
   		b. Chemoreceptors
   		c. Heatreceptors
   		d. All of the above

Answer 1

-Define Tidal volume

Ans-Tidal volume is defined as the volume of air moved into and out of the lungs during each ventilation cycle.

-Volume of air inhaled and exhaled in a single normal breath.

Ans-inhalation volume 500 ml

Exhalation volume 500ml

--Maximal air volume that can be exhaled after maximal inhalation.

Ans-The total amount of air exhaled after maximal inhalation. The value is about 4800mL and it varies according to age and body size

--Volume of air remaining in lungs even after maximal expiration.

Ans- It is 1000- 1500ml volume remain in lungs after maximum expiration

-- Proportion of blood volume used to carry oxygen.

Ans-98%