| Concepts | Questions | Media Resources |
18.1 Sensory Receptors and Sensations - Sensory receptors detect certain types of external or internal stimuli.
- Sensation occurs when sensory receptors send nerve impulses to the brain.
| - What category of receptors includes pain receptors?
Answer
- Explain the difference between a sensation and a perception.
Answer
| Essential Study Partner
Introduction
Chemoreceptors
Light Receptors
Mechanoreceptors
Receptors and Sensations General Biology Weblinks
Anatomy & Physiology |
18.2 Proprioceptors and Cutaneous Receptors - Proprioceptors in muscles and joints help the body maintain balance and posture.
- Cutaneous receptors in the skin are sensitive to touch, pressure, pain, and temperature (warmth and cold).
| - What are the two types of proprioceptors, what do they do, and where are they located?
Answer
- Where are cutaneous receptors located within the skin?
Answer
| Essential Study Partner
Somatic Senses Art Quiz
Sensory Receptors in Skin |
18.3 Sense of Taste and Smell - Taste cells within taste buds in the mouth are sensitive to molecules that result in bitter, sour, salty, or sweet tastes.
- Olfactory cells within the olfactory epithelium are sensitive to molecules that result in a sense of smell.
| - Explain how taste is perceived.
Answer
- Why does the sense of smell seem to be so closely linked to memory and emotions?
Answer
| Essential Study Partner
Sense of Taste
Sense of Smell Art Quiz
Smell Animation Quizzes
Smell
Taste |
18.4 Sense of Vision - The photoreceptors for sight contain visual pigments, which detect light rays.
- A great deal of integration occurs in the retina of the eye before nerve impulses are sent to the brain.
| - Trace the path of light through the eye to the retina.
Answer
- What abnormalities of the eyeball lead to nearsightedness and farsightedness?
Answer
| Essential Study Partner
Sense of Vision Art Quizzes
Eye Evolution
Retina Structure
Visual Processing Pathway Animation Quiz
Vision Labeling Exercises
 Anatomy of the Human Eye (1) (48.0K)
Anatomy of the Human Eye (2) (52.0K) |
18.5 Sense of Hearing - The mechanoreceptors for hearing are hair cells in the cochlea of the inner ear that detect pressure waves.
| - What portion of the ear is filled with fluid, and what portions contain air?
Answer
- How are volume and pitch perceived by the hair cells of the cochlea?
Answer
| Essential Study Partner
Sense of Hearing Animation Quiz
Hearing Labeling Exercise
Anatomy of the Human Ear (34.0K) Case Study
Hearing Loss and Jobs |
18.6 Sense of Equilibrium - Hair cells in the semicircular canals of the inner ear are responsible for rotational equilibrium.
- Hair cells in the vestibule of the inner ear are responsible for gravitational equilibrium.
| - What is the difference between rotational equilibrium and gravitational equilibrium, and where is each sense housed within the inner ear?
Answer
| Essential Study Partner
Equilibrium Art Quiz
Semicircular Canals and Ampulla Animation Quizzes
Sense of Balance
Sense of Rotational Acceleration |
