Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

13. The Peripheral Nervous System

Introduction to Sensory Receptors

Anatomy & Physiology

13. The Peripheral Nervous System

Introduction to Sensory Receptors

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Problem 26

Textbook Question

Ascending tracts
(a) Carry sensory information to the brain,
(b) Carry motor information to the brain
(c) Carry sensory information from the brain
(d) Carry motor information from the brain
(e) Connect perceptive areas with the brain

Verified step by step guidance

Understand the concept of ascending tracts: Ascending tracts are pathways in the central nervous system that carry sensory information from the peripheral body to the brain. They are part of the white matter in the spinal cord.

Recall the types of information carried by ascending tracts: Ascending tracts are responsible for transmitting sensory signals, such as touch, pain, temperature, and proprioception (body position awareness). These signals are sent to the brain for processing.

Differentiate between sensory and motor pathways: Sensory pathways (ascending tracts) carry information to the brain, while motor pathways (descending tracts) carry instructions from the brain to muscles and glands.

Eliminate incorrect options: (b) and (d) refer to motor information, which is carried by descending tracts, not ascending tracts. (c) refers to sensory information from the brain, which is not the function of ascending tracts. (e) refers to connections between perceptive areas and the brain, which is not specific to ascending tracts.

Select the correct answer: Based on the understanding of ascending tracts, the correct option is (a), as they carry sensory information to the brain.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Ascending Tracts

Ascending tracts are neural pathways in the central nervous system that transmit sensory information from the body to the brain. They play a crucial role in processing sensory inputs such as touch, pain, temperature, and proprioception, allowing the brain to interpret and respond to various stimuli.

Sensory Information

Sensory information refers to data collected by sensory receptors from the environment, which includes visual, auditory, tactile, olfactory, and gustatory inputs. This information is essential for perception and is relayed to the brain via ascending tracts, enabling the organism to react appropriately to its surroundings.

Motor Information

Motor information involves signals that originate in the brain and are sent to muscles and glands to elicit movement or physiological responses. While ascending tracts primarily carry sensory information, descending tracts are responsible for transmitting motor commands from the brain to the body, highlighting the distinction between sensory and motor pathways.

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Related Practice

Textbook Question

A receptor potential:

a. Always leads to an action potential

b. Never leads to an action potential

c. Causes hyperpolarization of the neuron

d. Leads to an action potential if the stimulus is strong enough

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Textbook Question

Merkel cell fibers, tactile corpuscles, Ruffini endings, and lamellated corpuscles are all types of:

a. Nociceptors

b. Mechanoreceptors

c. Photoreceptors

d. Chemoreceptors

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Textbook Question

Predict what might happen if nociceptors were rapidly adapting instead of slowly adapting receptors. Would this change be beneficial or potentially harmful?

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Textbook Question

Mark the following statements as true or false. If a statement is false, correct it to make a true statement.

b. Thermoreceptors send temperature information to centers in the hypothalamus.

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Textbook Question

Tactile nerve endings, tactile corpuscles, bulbous corpuscles, and lamellated corpuscles are all types of:

a. Nociceptors

b. Mechanoreceptors

c. Photoreceptors

d. Chemoreceptors

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Textbook Question

Which of the following is true of the autonomic, but not the somatic, nervous system?

a. Neurotransmitter is acetylcholine

b. Axons are myelinated

c. Effectors are muscle cells

d. It has motor neurons located in ganglia

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Textbook Question

What are the major components of the peripheral nervous system?

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Multiple Choice

Owen is a grad student who does research on sensory receptors. When classifying receptors, he organizes them based on if respond to external or internal stimuli. Owen is classifying receptors by: