Explanation

Digestion begins in the mouth, when you chew and swallow, and is completed in the small intestine.

**********

VU LDC UDC FIA PAPER 27-12-2021

Explanation

Goiter is a disease in which the thyroid gland present in neck enlarges, resulting swelling in the neck. 

Goiter means گلہڑ

Explanation

The human brain weighs approximately about 1.4 kilograms or 1400 in gram

and makes up about 2% of the human body weight.

The brain is divided into three regions -

Forebrain,

midbrain, 

hindbrain.

Explanation

Explanation

• Males: 18 inches (45 cm)
• Females: 17 inches (43 cm)

• Cylindrical bundle of nerves.
• Extends from the brain through the backbone.

Function:

• Relays information between the brain and body.
• Part of the central nervous system (with the brain).

Explanation

Calcium is the most abundant mineral in the human body, making up 1.5 to 2% of the total body weight.

Approximately 1,200 g of calcium is present in the body of an adult human; more than 99% of that amount is found in bones.

Explanation

The pinna is the outer part of the ear that collects sound waves and directs them into the ear canal.

From there, sound waves travel to the ear drum and further into the inner ear for processing.

Explanation

Bones do not secrete hormones, which are produced by glands in the endocrine system.

The parathyroid gland secretes parathyroid hormone.

It regulates calcium levels in the blood and bones.

Explanation

Explanation

The peripheral nervous system (PNS) includes 12 pairs of cranial nerves that originate from the brain.

These nerves primarily control functions of the head, neck, and some internal organs like the heart and lungs.