Explanation

• The Canines are pointed teeth that are adapted for tearing and slashing.
• Teeth are specialized structures in the mouth for biting, tearing, and chewing food.
• Humans have different types of teeth: incisors, canines, premolars, and molars.
• Humans have 4 canines (2 upper, 2 lower) used for tearing meat.

Last verified on 16-03-2026

Explanation

• The elbow joint is a classic example of a hinge joint,
• It connects the humerus (upper arm) with the ulna and radius (forearm).
• Movement: Primarily allows for flexion and extension.
• Type: Synovial hinge joint.

Explanation

• The shoulder is primarily a ball-and-socket joint (glenohumeral joint),
• The elbow is a hinge joint (ulnohumeral joint).
• Both are classified as synovial joints,
• Freely movable and surrounded by a fluid-filled capsule. 

Explanation

• During swallowing, the epiglottis (a flap of cartilage) folds down.
• It closes the opening of the trachea (windpipe) so that food enters the esophagus instead of the airway.
• This protective mechanism prevents choking and food entering the lungs.

Last verified on 15-03-2026

Explanation

• The outer ear (pinna and ear canal) collects sound vibrations from the environment.
• These vibrations travel through the auditory canal to the eardrum (tympanic membrane).

Additional information:

Main Parts of the Ear

• Outer Ear – Pinna and auditory canal
• Middle Ear – Eardrum and three ossicles (malleus, incus, stapes)
• Inner Ear – Cochlea and semicircular canals (hearing and balance)

Last verified on 15-03-2026