quiz today

Question 1

Main route of air entry.
Two cavities divided by a SEPTUM.
Anteriorly consist hyaline cartilage.
The roof is formed by ethmoid bone
The floor is formed by roof of the mouth.
The medial wall formed by the septum.
The lateral wall formed by the maxilla

Answer 1

Nose and Nasal Cavity

Question 2

RESPIRATORY FUNCTIONS OF THE NOSE

Answer 2

Warning
filtering and cleaning
HUMIDIFICATION

Question 3

is the part of thethroatthat is behind themouth andnasal cavityand above theesophagusand thelarynx.
Length- 12-14cm (extends from the base of the skull to the level of 6th cervical vertebra.)

Answer 3

PHARYNX

Question 4

For descriptive purposes the pharynx is divided into three parts:

Answer 4

(i) The nasopharynx
(ii)The oropharynx
(iii) The laryngopharynx

Question 5

The nasal part of the pharynx lies behind the nose.

Answer 5

The nasopharynx

Question 6

The oral part of the pharynx lies behind the mouth

Answer 6

The oropharynx

Question 7

The laryngeal part of the pharynx extends from the oropharynx.

Answer 7

The laryngopharynx

Question 8

composed of three layers:
Mucous membrane lining
Fibrous tissue
Smooth muscle
Blood supply
Facial artery
Facial vein
Internal jugular veins
Nerve supply
Vagus nerve
Glossopharyngeal nerve

Answer 8

PHARYNX

Question 9

fUNCTIONS OF PHARYNX

Answer 9

Taste.
There are olfactory nerve endings.
Hearing.
The auditory tube,extending from the nasopharynx to each middle ear.
Protection.
The lymphatic tissue of the pharyngeal tonsils produces antibodies.
Speech.
Act as a resonating chamber for sound ascending from the larynx.

Question 10

THE ———– or voice box extends from the root of the tongue.
It lies in front of the laryngopharynx at the level of 3rd , 4th ,5th and 6th cervical vertebra.
Until the puberty there is little difference in the size of the larynx between the sexes.
It grows larger in the male.

Answer 10

The larynx

Question 11

The larynx is composed of several irregularly shaped cartilages attached to each other by ligaments and membranes.
The main cartilages are:

Answer 11

1 thyroid cartilage
1 cricoid cartilage hyaline cartilage
2 arytenoid cartilage
1 epiglottis ELASTIC FIBROCARTILAGE

Question 12

This is the most prominent & consists of 2 flat pieces of hyaline cartilage & fused anteriorly forming the Adam’s apple.

Answer 12

thyroid cartilage

Question 13

This lies below the thyroid cartilage & composed of hyaline cartilage.

Answer 13

cricoid cartilage

Question 14

These are two roughly pyramid-shaped hyaline cartilages situated on top of the broad part of the cricoid cartilage.

Answer 14

Artenoid cartillage

Question 15

This is a leaf-shaped fibroelastic cartilage attached to the inner surface of the anterior wall of the thyroid cartilage.

Answer 15

The epiglottis

Question 16

functions of larynx

Answer 16

Production of sound
Speech
Protection of the lower respiratory tract
During swallowing the larynx moves upwards and hinged epiglottis closes over the larynx.
Passageway for air
Humidifying
Filtering
Warming

Question 17

The ———- or windpipe is a continuation of the larynx & extends downwards to about the level of T-5 where it divides into right & left primary bronchi.
Length-10-11cm

Answer 17

Trachea

Question 18

Composed of 3 layers of tissue.
(i) fibrous & elastic tissue
(ii) smooth muscle
(iii) ciliated columnar epithelium
Held open by between 16-20 incomplete cartilage rings (C-shaped)

Answer 18

Trachea

Question 19

Support and patency
Mucociliary escalator
Cough reflex
Warming
Humidifying
Filtering

Answer 19

Trachea

Question 20

The two primary bronchi when the trachea divides about the level of T-5.

Answer 20

The right bronchus

This is wider,shorter and more vertical than the left bronchus.
Length-2.5cm
After entering the right lung,it divides into 3 branches,one to each lobe.

The left bronchus

This is narrower than the right
Length-5cm
After entering the left lung,it divides into 2 branches,one to each lobe.

Question 21

trivia

Answer 21

The bronchi are composed of the same issues as the trachea.
Are lined with ciliated columnar epithelium.

Division of bronchi
.
Bronchioles
>
Terminal bronchioles
>
Respiratory bronchioles
>
Alveolar ducts
>
Alveoli