Egestion

Q. The main function of lacteals in the villi of human small intestine is the absorption of:

1. Glucose and vitamins
2. fatty acids and glycerol
3. Water and mineral salts
4. amino acids and glucose

Q. Reverse flow of food in the stomach is prevented by

1. pyloric sphincter
2. Uvula
3. cardiac sphincter
4. ileo caecal valve

Q. Which of the following is the correct composition of faeces?

1. 25% water and 75% solid matter
2. 50% water and 50% solid matter
3. 33% water and 67% solid matter
4. 75% water and 25% solid matter

Q. Undigested food is stored in anus.

1. False
2. True

Q. Which of the following is the correct composition of faeces?

1. 25% water and 75% solid matter
2. 50% water and 50% solid matter
3. 33% water and 67% solid matter
4. 75% water and 25% solid matter

Q.
The acidic region of gastrointestinal tract is

1. mouth
2. large intestine
3. small intestine
4. stomach

Q. Which nervous system controls the gastrointestinal movement?

1. Central Nervous System
2. Autonomic Nervous System
3. Peripheral Nervous System
4. None of the above

Q. The external anal sphincter is under involuntary control.

1. Vitamin K
2. riboflavin

Q. Define excretion and defecation.

Q.

Medulla controls:

1. Vomiting reflex

2. All of these

3. Sneezing reflex

4. Cough reflex

Q. (c) What is autonomic nervous system? What is its function?

Q. The process by which undigested substances are removed from the body is called __________

1. Excretion
2. Exhalation
3. Egestion
4. All of the above

Q. Parasympathetic and sympathetic nerves, to bring about minor adjustments in internal organ activity

1. service entirely different internal organs
2. work antagonistically, most often
3. come into play only during a fight-flight response
4. none of the above

Q. The passage of undigested food material from the body by way of the anus is called ..........

Q. Which of the following pairs correctly identifies function of parasympathetic nervous system?

1. Slows heart beat, promotes pancreatic secretion
2. Raises blood pressure, increases peristaltic activity.
3. Accelerates heart beat, dilates arteries
4. Increases secretion of sweat gland and intestinal gland

Q. Which of the following is the correct composition of faeces?

1. 75% water and 25% solid matter
2. 50% water and 50% solid matter
3. 25% water and 75% solid matter
4. 33% water and 67% solid matter

Q. Osphradium of Pila can be categorized into which of the following types of receptors?

1. Chemoreceptor
2. Photoreceptor
3. Tangoreceptor
4. Phonoreceptor

Q. For how much time an average meal stays in a fish-hook stomach?

1. 6---8 hrs
2. 3----4 hrs
3. 1---2 hrs
4. 8---10 hrs

Q. ____________ valve prevents the backflow of faeces into the small intestine.

1. Pyloric sphincter
2. Cardiac sphincter
3. Sphincter of oddi
4. Ileo-caecal valve

Q.
Undigested food or thyme does not pass through

1. pancreas
2. duodenum
3. large intestine
4. stomach

Q.

The process of (i)______ is modulated by long powerful waves of contractions of the (ii)______. Once the rectum is filled to 25% of its capacity, a (iii)______ stimulates the desire to defecate. In response to this, we voluntarily relax the external (iv)______ to allow feces to pass from the rectum into the anal canal and out through the anus.

1. i. Active absorption ii. Lacteals iii. Passive absorption iv. Colon

2. i. Passive absorption ii. Ceacum iii. Active absorption iv. Capillaries

3. i. Egestion or Defecation ii. Colon iii. Neural reflex iv. Anal sphincter

4. i. Duodenum ii. Capillaries iii. Active absorption iv. Passive absorption

Q. Infants do not develop voluntary control of which of the following sphincter of the alimentary canal? (It is developed only when they grow up)

1. Internal anal sphincter
2. Pyrolic sphincter
3. External anal sphincter
4. All of the above

Q. Upon 25% filling of rectum neural reflexes stimulate peristaltic contraction leading to defecation reflex.

1. True
2. False

Q. Which of the following actions of the human body causes defaecation?

1. Voluntary action of the internal anal sphincter and involuntary action of the external anal sphincter
2. Involuntary action of the internal anal sphincter and Voluntary action of the external anal sphincter
3. Voluntary action of rectal muscles
4. Involuntary action of abdominal muscles

Q. Involuntary action in the body is controlled by

1. Medulla in spinal cord
2. Medulla in mid brain
3. Medulla in hind brain
4. Medulla in fore brain

Q. The external anal sphincter is under involuntary control.

1. False
2. True

Q. Upon 25% filling of rectum neural reflexes stimulate peristaltic contraction leading to defecation reflex.

1. True
2. False

Q.
Faeces in the body is stored in

1. duodenum
2. ileum
3. rectum
4. caecum

Q. Roughage is

1. A vitamin which helps the enzymes to digest the food.
2. A substance in plant which is indigestible by human body.
3. A cerebral fluid that helps to retain more memory.
4. A protein that helps the blood to carry more oxygen.