Question 1

Which receptors adapt most slowly?&#10;A) touch receptors&#10;B) pressure receptors&#10;C) nociceptors&#10;D) smell receptors

Accepted Answer

Nociceptors adapt more slowly because their purpose is to detect potential harm or tissue damage, which requires a quick response and sustained activation. Touch and pressure receptors adapt more quickly to prevent overload of information, while smell receptors can adapt quickly due to the high amount of and variety of odors in the environment.

Question 2

What type of receptors monitor changes in the concentrations of various chemicals in body fluids?&#10;A) mechanoreceptors&#10;B) thermoreceptors&#10;C) nociceptors&#10;D) chemoreceptors

Accepted Answer

Chemoreceptors are specialized receptors that detect chemical changes in body fluids, such as changes in oxygen, carbon dioxide, and pH levels. They are found in various organs such as the carotid bodies, aortic bodies, and taste buds. Mechanoreceptors detect mechanical stimuli, thermoreceptors detect changes in temperature, and nociceptors detect pain.

Question 3

Pain is selectively detected by ________.&#10;A) mechanoreceptors&#10;B) thermoreceptors&#10;C) nociceptors&#10;D) proprioceptors

Accepted Answer

Pain is detected by nociceptors, which are specialized sensory receptors that respond to stimuli that can potentially cause tissue damage, such as extreme temperatures, pressure, or chemicals. Mechanoreceptors respond to mechanical stimuli, thermoreceptors respond to temperature changes, and proprioceptors respond to changes in body position and movement.

Question 4

Which of the following are unencapsulated tactile receptors that are in direct contact with the epidermis and respond to sensory neurons at swollen synapses called tactile discs?&#10;A) tactile corpuscles&#10;B) root hair plexuses&#10;C) Merkel cells&#10;D) Meissner's corpuscles

Accepted Answer

Merkel cells are unencapsulated tactile receptors that are in direct contact with the epidermis and respond to sensory neurons at swollen synapses called tactile discs. Tactile corpuscles and Meissner's corpuscles are both encapsulated receptors that are located deeper in the dermis. Root hair plexuses are receptors around hair follicles that detect hair movement.

Question 5

Which type of receptors respond to pressure changes in liquids and gases?&#10;A) baroreceptors&#10;B) Golgi tendon organ&#10;C) muscle spindles&#10;D) proprioceptors

Accepted Answer

Baroreceptors are specialized receptors that respond to changes in pressure in liquids (such as blood pressure) and gases (such as changes in atmospheric pressure). Golgi tendon organs, muscle spindles, and proprioceptors are receptors that are involved in monitoring muscle and joint position and movement.

Question 6

Where does one feel pain during a liver or gallbladder attack?&#10;A) superior right shoulder&#10;B) superior left shoulder&#10;C) thoracic cavity&#10;D) abdomen

Accepted Answer

Pain from a liver or gallbladder attack is typically felt in the superior right shoulder due to referred pain.

Question 7

Where does one feel pain during a heart attack?&#10;A) right arm&#10;B) thoracic cavity&#10;C) left arm&#10;D) abdomen

Accepted Answer

During a heart attack, it is common to feel pain or discomfort in the left arm, along with other symptoms such as chest pain or pressure, shortness of breath, and dizziness. Pain in the right arm or abdomen is less common and could indicate other medical conditions. The thoracic cavity includes the chest area, where heart attack pain is commonly felt.

Question 8

Which type of receptors respond to deep pressure and vibrations?&#10;A) Merkel cells&#10;B) Pacinian&#10;C) Meissner's corpuscles&#10;D) Ruffini corpuscles

Accepted Answer

Pacinian corpuscles are specialized receptors that respond to deep pressure and vibrations. They are found in the skin, subcutaneous tissue, and some internal organs. Merkel cells (A) are responsible for detecting light touch and pressure, while Meissner's corpuscles (C) detect light touch and Ruffini corpuscles (D) detect skin stretch and sustained pressure.

Question 9

A sensory neuron monitors a specific region called a ________.&#10;A) merkel cell&#10;B) ruffini corpuscles&#10;C) receptive field&#10;D) lamellated corpuscles

Accepted Answer

A receptive field is the specific region that a sensory neuron monitors. Merkel cells, Ruffini corpuscles, and lamellated corpuscles are all types of sensory receptors found within the skin.

Question 10

What does the two-point discrimination test measure?&#10;A) the distribution of nociceptors&#10;B) the distribution of chemoreceptors on the skin&#10;C) the distribution of touch receptors on the skin&#10;D) the distribution of thermoreceptors on the skin

Accepted Answer

The two-point discrimination test measures the distribution of touch receptors on the skin. This test involves touching the skin with two points that are close together and asking the individual to identify whether they feel one or two points. The closer the points can be before the individual cannot distinguish them as two separate points, the higher the density of touch receptors in that area of the skin.

Question 11

All of the following are a special sense EXCEPT ________.&#10;A) taste&#10;B) smell&#10;C) touch&#10;D) hearing

Accepted Answer

The answer of All of the following are a special...

Deck 27: General Senses