Question

1. a person who is cold shivers to generate body heat. which of the following lists the primary body systems that interact to maintain homeostasis in this situation?

a) nervous, excretory, and respiratory
b) excretory, digestive, and respiratory
c) digestive, muscular, and circulatory
d) muscular, circulatory, and nervous

1. lou gehrigs disease disrupts the function of nerve cells that control the movement of limbs and other body parts. which body system is most likely to be directly affected by this disease?

a) the endocrine system
b) the digestive system
c) the circulatory system
d) the nervous system

Explanation:

1. When a person is cold, the nervous system detects the temperature change. The muscular system (shivering is muscle contraction) generates heat. The circulatory system helps distribute the heat.
2. Lou Gehrig's disease (ALS) affects nerve cells that control muscle movement. So it directly impacts the muscular system as the nerves that signal muscles are disrupted.

Answer:

1. D. Muscular, Circulatory, and Nervous
2. D. The muscular system