Domanda del libro di testo
The spiral organ sits on the ________ membrane, and the stereocilia of the outer hair cells contact the _____ membrane.
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Ch. 15 The Special Senses
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814
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TOC.tableOfContents
- Ch. 1 Introduction to Anatomy and Physiology24
- Ch. 2 The Chemistry of Life37
- Ch. 3 The Cell54
- Ch. 4 Histology46
- Ch. 5 The Integumentary System30
- Ch. 6 Bones and Bone Tissue36
- Ch. 7 The Skeletal System40
- Ch. 8 Articulations19
- Ch. 9 The Muscular System35
- Ch. 10 Muscle Tissue and Physiology29
- Ch. 11 Introduction to the Nervous System and Nervous Tissue28
- Ch. 12 The Central Nervous System41
- Ch. 13 The Peripheral Nervous System41
- Ch. 14 The Autonomic Nervous System and Homeostasis31
- Ch. 15 The Special Senses39
- Ch. 16 The Endocrine System42
- Ch. 17 The Cardiovascular System I: The Heart28
- Ch. 18 The Cardiovascular System II: The Blood Vessels43
- Ch. 19 Blood32
- Ch. 20 The Lymphatic System and Immunity41
- Ch. 21 The Respiratory System27
- Ch. 22 The Digestive System27
- Ch. 23 Metabolism and Nutrition7
- Ch. 24 The Urinary System39
- Ch. 25 Fluid, Electrolyte, and Acid-Base Homeostasis39
- Ch. 26 The Reproductive System10
- Ch. 27 Development and Heredity5
Amerman3rd EditionHuman Anatomy & PhysiologyISBN: 9780138247201, 9780138247928, 9780138201814Non è quello che usi tu?Cambia libro di testo
Capitolo 15, Problema 16
The macula in the utricle detects:
a. Rotation of the head to the right
b. Very low-frequency sound waves that we can feel but not hear
c. Tilting of the head to one side
d. Linear acceleration of the head in a vertical plane
Guida verificata passo dopo passo1
Understand the anatomy of the macula: The macula is a sensory structure located in the utricle and saccule of the vestibular system within the inner ear. It contains hair cells embedded in a gelatinous layer with otoliths (calcium carbonate crystals) on top.
Review the function of the utricle: The utricle is primarily responsible for detecting linear acceleration and head position changes in the horizontal plane, such as forward and backward movements or tilting of the head.
Differentiate between the utricle and saccule: While the utricle detects linear acceleration in the horizontal plane, the saccule detects linear acceleration in the vertical plane, such as movements up and down.
Analyze the options provided: Rotation of the head (option a) is detected by the semicircular canals, not the macula. Very low-frequency sound waves (option b) are related to the cochlea, not the vestibular system. Tilting of the head (option c) is detected by the macula in the utricle, but specifically in the horizontal plane. Linear acceleration in the vertical plane (option d) is detected by the macula in the saccule, not the utricle.
Conclude based on the anatomy and physiology of the vestibular system: The macula in the utricle detects tilting of the head to one side and linear acceleration in the horizontal plane, not vertical plane movements or sound waves.
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Utricle Function
The utricle is a part of the vestibular system located in the inner ear, responsible for detecting linear accelerations and head tilts. It contains sensory hair cells embedded in a gelatinous structure called the otolithic membrane, which responds to gravitational forces and changes in head position.
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Percorso guidato
06:04
Functional Groups
Linear Acceleration
Linear acceleration refers to the rate of change of velocity in a straight line. In the context of the utricle, it specifically relates to how the head moves in a vertical or horizontal plane, allowing the body to maintain balance and spatial orientation.
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03:33Origin of Replication
Vestibular System
The vestibular system is a sensory system that contributes to balance and spatial orientation. It includes structures such as the utricle, saccule, and semicircular canals, which work together to detect motion, head position, and changes in equilibrium, providing critical information for coordination and balance.
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4:25Complement System
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How do the hair cells of the crista ampullaris detect rotation of the head?
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Domanda del libro di testo
Mark True or false
Hair cells in the spiral organ will depolarize or hyperpolarize, depending on the direction in which the stereocilia are bent.
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Domanda del libro di testo
Which of the following is not part of the auditory pathway in the CNS?
a. Superior temporal lobe
b. Superior colliculus
c. Medial geniculate nucleus
d. Nuclei in the pons
e. Cochlear nuclei
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Domanda del libro di testo
Mark the following statements as true or false. If a statement is false, correct it to make a true statement.
The spiral organ is located in the scala tympani.
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Domanda del libro di testo
Explain how sounds of different frequencies are detected in the cochlea.
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