Pearson eText Human Anatomy -- Instant Access (Pearson+)
9th Edition
ISBN: 9780135273005
Author: Elaine Marieb, Patricia Wilhelm
Publisher: PEARSON+
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Textbook Question
Chapter 13, Problem 20CYU
Name the dura mater extension that lies in the longitudinal fissure.
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Normal dive (for diving humans)
normal
breathing
dive
normal
breathing
Oz level
CO2 level
urgent need
to breathe
Oz blackout zone
high CO2 triggers breathing
6. This diagram shows rates of oxygen depletion and carbon dioxide accumulation in the blood in
relation to the levels needed to maintain consciousness and trigger the urgent need to breathe in
diving humans.
How might the location and slope of the O₂ line differ for diving marine mammals such as
whales and dolphins?
•
How might the location and slope of the CO₂ line differ for diving marine mammals such as
whales and dolphins?
•
•
Draw in predicted lines for O2 and CO2, based on your reasoning above.
How might the location of the Urgent Need to Breathe line and the O2 Blackout Zone line
differ for diving marine mammals?
What physiological mechanisms account for each of these differences, resulting in the ability
of marine mammals to stay submerged for long periods of time?
foraging/diet type
teeth
tongue
stomach
intestines
cecum
Insectivory
numerous, spiky, incisors procumbentExample: moleExample: shrew
--
simple
short
mostly lacking
Myrmecophagy
absent or reduced in numbers, peg-likeExample: tamandua anteater
extremely long
simple, often roughened
short
small or lacking
Terrestrial carnivory
sharp incisors; long, conical canines; often carnassial cheek teeth; may have crushing molarsExample: dog
--
simple
short
small
Aquatic carnivory
homodont, spiky, numerousExample: common dolphin
--
simple or multichambered (cetaceans only)
variable
small or absent
Sanguinivory
very sharp upper incisors; reduced cheek teethExample: vampire bat
grooved
tubular, highly extensible
long
small or lacking
Herbivory (except nectivores)
incisors robust or absent; canines reduced or absent; diastema; cheek teeth enlarged with complex occlusal surfacesExample: beaver
--
simple (hindgut fermenters) or multichambered (ruminants)
long
large
Filter feeding
none…
3. Shown below is the dental formula and digestive tract anatomy of three mammalian species
(A, B, and C). What kind of diet would you expect each species to have? Support your
answers with what you can infer from the dental formula and what you can see in the
diagram. Broadly speaking, what accounts for the differences?
Species A
3/3, 1/1, 4/4, 3/3
པར『ན་
cm 30
Species B
4/3, 1/1, 2/2, 4/4
cm 10
Species C
0/4, 0/0,3/3, 3/3
020
Chapter 13 Solutions
Pearson eText Human Anatomy -- Instant Access (Pearson+)
Ch. 13 - Prob. 1CYUCh. 13 - Prob. 2CYUCh. 13 - Name the structure that connects the third...Ch. 13 - Prob. 4CYUCh. 13 - In which part of the brain stem are each of the...Ch. 13 - What are the corpora quadrigemina?Ch. 13 - Name the structure that connects the two...Ch. 13 - What type of sensory information does the...Ch. 13 - Name the three white fiber tracts that connect the...Ch. 13 - Prob. 10CYU
Ch. 13 - What part of the diencephalon functions as the...Ch. 13 - What is the difference in function between a...Ch. 13 - Which functional area of the cerebral cortex plans...Ch. 13 - Define contralateral projection.Ch. 13 - What deficits may result from injury to the...Ch. 13 - Prob. 16CYUCh. 13 - Where is the caudate nucleus located in reference...Ch. 13 - From where do the reticular nuclei receive input?...Ch. 13 - What emotional response does the amygdaloid body...Ch. 13 - Name the dura mater extension that lies in the...Ch. 13 - Where is cerebrospinal fluid produced? How is it...Ch. 13 - What neural structures pass through the vertebraI...Ch. 13 - Which portion of the spinal cord, gray matter or...Ch. 13 - Prob. 24CYUCh. 13 - Which two meninges border the space that is filled...Ch. 13 - Which sensory pathway carries discriminative touch...Ch. 13 - Of the sensory pathways described, which pass...Ch. 13 - Which descending fiber tract originates from the...Ch. 13 - Which of the pathways illustrated here (ascending...Ch. 13 - Individuals who have suffered a stroke generally...Ch. 13 - Prob. 31CYUCh. 13 - Choose the correct brain structure from the key...Ch. 13 - A patient suffered a cerebral hemorrhage that...Ch. 13 - Destruction of the ventral horn cells of the...Ch. 13 - For each of the following brain structures, write...Ch. 13 - Which of the following areas is most likely to...Ch. 13 - Kimberly learned that the basic design of the CNS...Ch. 13 - When Ralph had brain surgery to remove a small...Ch. 13 - When their second child was born, Kiko and Taka...Ch. 13 - Cesar, a brilliant computer analyst, was hit on...Ch. 13 - One war veteran was tetraplegic, and another was...Ch. 13 - Every time Spike went to a boxing match, he...Ch. 13 - A spinal cord injury at C2 results not only in...Ch. 13 - What parts of the brain are still developing...Ch. 13 - Strokes, tumors, or wounds can destroy limited...
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- 3. Shown below is the dental formula and digestive tract anatomy of three mammalian species (A, B, and C). What kind of diet would you expect each species to have? Support your answers with what you can infer from the dental formula and what you can see in the diagram. Broadly speaking, what accounts for the differences? Species A 3/3, 1/1, 4/4, 3/3 cm 30 Species B 0/4, 0/0, 3/3, 3/3 cm 10 Species C 4/3, 1/1, 2/2, 4/4 E 0 cm 20 AILarrow_forwardNormal dive (for diving humans) normal breathing dive normal breathing Oz level CO₂ level urgent need to breathe Oz blackout zone high CO₂ triggers breathing 6. This diagram shows rates of oxygen depletion and carbon dioxide accumulation in the blood in relation to the levels needed to maintain consciousness and trigger the urgent need to breathe in diving humans. • How might the location and slope of the O2 line differ for diving marine mammals such as whales and dolphins? • How might the location and slope of the CO2 line differ for diving marine mammals such as whales and dolphins? • • Draw in predicted lines for O2 and CO2, based on your reasoning above. How might the location of the Urgent Need to Breathe line and the O2 Blackout Zone line differ for diving marine mammals? What physiological mechanisms account for each of these differences, resulting in the ability of marine mammals to stay submerged for long periods of time?arrow_forwardHow much ATP will be produced during the following metabolic scenario: Aerobic respiration of a 5mM lipid solution that is made up of one glycerol and an 8-carbon fatty acid and 12-carbon fatty acid. Recall that when glycerol breaks down to Glyceraldehyde-3-phosphate it costs one ATP but your get an extra FADH2. Every two carbons of a fatty acid break down to one acetyl-CoA. Units cannot be entered in this style of question but the units of your answer should be in mM of ATP.arrow_forward
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