Tag: busy at work - our internal organs

Quizzes (25) Questions (283)

Questions Related to busy at work - our internal organs

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Consider the following statements each with two blanks. 
(i)    Actually, only about (1)ml of air enters the lung alveoli for the exchange of gases.The remaining fills the respiratory passage and is termed (2).
(ii) The amount of air which one can inhale with maximum effort and also exhale with maximum effort is termed as (3) . It is about (4) in normal adult person.
(iii) During normal quiet breathing, on an average, approximately (5) ml of air is inspired or expired by adult human male in each breath. It is termed as (6) volume.
Which of the following options gives the correct fill ups for the respective blank numbers from (1) to (6) in the above statements?

  1. (3)-vital capacity, (4)-4000 mL, (5)-500, (6)-tidal

  2. (1)-100, (2)-residual volume, (3)-functional residual capacity, (4)-3000mL

  3. (1)-350,(2)-dead space air, (5)-1000,(6)-inspiratory reserve

  4. (1)-350, (2)-residual volume, (3)-vital capacity, (4)-4000 mL
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Actually, only about 350 mL of air (out of total 500 mL tidal volume) enters the lung alveoli for the exchange of gases. The remaining 150 mL fills the respiratory passage and is termed as dead air space because no exchange of gases takes place here.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Liver in our body stores

  1. Vitamin A

  2. Vitamin D
  3. Vitamin $B _{12}$

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Liver is the largest organ in the body. It helps in digestion and removes waste products and worn-out cells from the blood. Liver performs many functions, like it forms and secretes bile that contains bile acids to aid in the intestinal absorption of fats and the fat-soluble vitamins as A, D, E, K and $B _{12}$. Hence, it stores vitamins as A, D, E, K and $B _{12}$.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Nasal chambers and buccal cavity are separated by

  1. By uvula

  2. By palate

  3. By palatine

  4. All of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

  • The oral and nasal cavities lie near the body midline, inferior and medial to the orbital cavities, anterior to the pharynx and medial to the infratemporal fossa.
  • They are separated from one another by the palate. 
  • Each cavity has an entrance and an exit. Hence, Nasal chambers and buccal cavity are separated by the palate.
So, the correct answer is 'By palate'.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Which of the following is a common passage in swallowing food and breathing?

  1. Pharynx

  2. Larynx

  3. Glottis

  4. Gullet
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Pharynx  connects the nasal cavity and mouth to the larynx and esophagus. It is the common pathway for food and air. There are three regions nasopharynx, oropharynx, and laryngopharynx. Nasopharynx  an air passage; uvula prevents food from entering it during swallowing. Oropharynx posterior to the mouth, passageway for food and air. Laryngopharynx passageway for food and air. Directly posterior to the epiglottis and extends to the larynx, then becomes continuous with esophagus. 

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

Crypts of Lieberkuhn are present in 

  1. Stomach

  2. Colon of large intestine

  3. Ileum part of small intestine

  4. Duodenum
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Small intestine is made up of three parts- duodenum, jejunum and ileum. The intestinal wall bears microscopic finger like projections called villi. The Mucosa layer forms crypts in between the bases of villi in the intestine (crypts of Lieberkuhn). The crypts produce digestive juice.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

In human being, sphincter of Oddi is situated in

  1. Common bile duct

  2. Ampulla of vater

  3. Main pancreatic duct

  4. Common hepatic duct
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Various smooth muscle sphincters regulate the flow of bile and pancreatic juice through the ampulla: the sphincter of the pancreatic duct, the sphincter of the bile duct, and the hepatopancreatic sphincter (Sphincter of Oddi).The sphincter of Oddi controls the introduction of bile and pancreatic secretions into the duodenum, as well as preventing the entry of duodenal contents into the ampulla.

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

'Crypts of Lieberkuhn' are found in

  1. Gall bladder

  2. Liver

  3. Pancreas

  4. Intestinal glands
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Folds of small intestine are conical shaped villi.  Small slit like space is found at the base of villi. These spaces are called crypts of Lieberkuhn. The crypts of Leiberkuhn secrete succus entericus or intestinal juice. The succus entericus mainly contains water (99%) and various digestive enzymes (1%). 

Multiple choice evs - i busy at work - our internal organs human lymphatic system lymph and its function lymph and tissue fluid

The major site of protein breakdown to form free amino acids is in the

  1. Kidney

  2. Spleen

  3. Liver

  4. Bone marrow
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
During the digestion of proteins, hydrochloric acid and proteolytic enzymes in the stomach break down the intact protein molecule into amino acids, which are then absorbed through the intestinal wall. Further breakdown of amino acids to form free amino acid like α-keto acids occurs in the liver by a process known as transamination. It occurs in liver.