Sensory Receptors and Their Functions

The video explains the five senses: sight, smell, taste, sound, and touch, and how they function through sensory receptors. It covers four types of receptors: mechanoreceptors, chemoreceptors, thermoreceptors, and photoreceptors. Each sense is explored in detail, including olfaction (smell), gustation (taste), vision (sight), hearing, and balance, as well as touch and temperature. The video highlights the role of specific receptors in each sense and compares human abilities to those of other animals.

Which type of sensory receptor is responsible for detecting changes in temperature?

• Thermoreceptors

• Chemoreceptors

• Photoreceptors

• Mechanoreceptors

What type of receptor is involved in the sense of smell?

• Chemoreceptor

• Photoreceptor

• Mechanoreceptor

• Thermoreceptor

How many different odorant receptors do humans have?

• 400

• Trillion

• 100

• 1000

What is the primary function of gustatory receptors?

• Detecting light

• Sensing sound

• Identifying flavors

• Feeling touch

Where are rods and cones located in the eye?

• Lens

• Iris

• Cornea

• Retina

What is the role of rods in vision?

• Detecting color

• Seeing in dim light

• Sensing sound

• Feeling touch

What structure in the ear contains hair cells that act as mechanoreceptors?

• Cochlea

• Auditory nerve

• Eardrum

• Semicircular canals

Which type of receptor is responsible for detecting touch in the skin?

• Photoreceptors

• Chemoreceptors

• Thermoreceptors

• Mechanoreceptors

What is the function of the semicircular canals in the ear?

• Feeling touch

• Detecting light

• Sensing balance

• Identifying flavors

Which sensory receptor is activated by specific chemicals?

• Photoreceptor

• Thermoreceptor

• Chemoreceptor

• Mechanoreceptor