You're taking a train from Istanbul to Zagreb, and there has been a murder! Fortunately, a world-class detective is on the train with you and the train's owner ask him take over the case. You are not a suspect, but you are an expert in human physiology. You examine the body for "rigor mortis" to estimate the time of death. Rigor mortis occurs because, at death, all the existing ATP is rapidly depleted and no new ATP is made. The lack of ATP prevents the cross-bridge cycle, and the muscles become extremely stiff. You explain all of this to the detective, Hercule P, but he's confused why the lack of ATP would make the body stiff rather than limp. After all, isn't the primary function of sarcomeres to build tension in muscles? You tell Hercule that the lack of ATP actually prevents:

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
icon
Related questions
Question
Hi, May I get help with this question for physiology? An explanation leading to the correct answer would be helpful! Scenario: You're taking a train from Istanbul to Zagreb, and there has been a murder! Fortunately, a world-class detective is on the train with you and the train's owner ask him take over the case. You are not a suspect, but you are an expert in human physiology. You examine the body for "rigor mortis" to estimate the time of death. Rigor mortis occurs because, at death, all the existing ATP is rapidly depleted and no new ATP is made. The lack of ATP prevents the cross-bridge cycle, and the muscles become extremely stiff. You explain all of this to the detective, Hercule P, but he's confused why the lack of ATP would make the body stiff rather than limp. After all, isn't the primary function of sarcomeres to build tension in muscles? You tell Hercule that the lack of ATP actually prevents:
The closing of CA2+ leak
channels on the
sarcoplasmic reticulum
The troponin &
tropomyosin from
blocking the actin on the
thin filament
The decoupling of the
cross bridges from the
actin
YES
The power stroke
Transcribed Image Text:The closing of CA2+ leak channels on the sarcoplasmic reticulum The troponin & tropomyosin from blocking the actin on the thin filament The decoupling of the cross bridges from the actin YES The power stroke
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Anatomy & Physiology: An Integrative Approach
Anatomy & Physiology: An Integrative Approach
Anatomy and Physiology
ISBN:
9780078024283
Author:
Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher:
McGraw-Hill Education
Human Anatomy & Physiology (Marieb, Human Anatomy…
Human Anatomy & Physiology (Marieb, Human Anatomy…
Anatomy and Physiology
ISBN:
9780321927040
Author:
Elaine N. Marieb, Katja Hoehn
Publisher:
PEARSON