Chapter 4 Questions
A person spends too much time in the sauna and starts to become dizzy. What is the first step in negative feedback that will occur to promote homeostasis?
Thermoreceptors sense the temperature change and send signals to the hypothalamus.
Tight junctions would be most numerous in areas that require ________.
an impermeable or leakpoof seal
A patient suffers from weakness and goes to the doctor and is diagnosed with high blood sugar levels. Which organ system can be causing this problem?
endocrine system
The presence of tightly packed cells with a free surface and a basement membrane allows this tissue to be quickly identified as ______________.
epithelial tissue
Which of the following is not a function of the integumentary system?
fat storage
Which of the following is not a function of the integumentary system? thermoregulation vitamin production protection from drying out fat storage protection from infection
fat storage
Which is not a structure associated with the integumentary system?
hypodermis
Which is not a structure associated with the integumentary system? blood vessels nerve fibers sebaceous glands hypodermis arrector pili muscles
hypodermis
Passages of the digestive system contain _____ membranes.
mucous
The main difference between negative feedback and positive feedback is that _______.
negative feedback minimizes changes from set point
Which cavity does not surround the heart?
pleural
What is the function of serous membranes?
prevent internal organs from rubbing against each other
The main difference between an endocrine gland and an exocrine gland is that the endocrine gland ____________.
secretes hormones and lack ducts
A body temperature of 37OC, blood pressure of 120/80, and a blood pH of 7.35 to 7.45 are all examples of
set points
Which tissue has the function of secretion and absorption and is located in the kidney tubules?
simple cuboidal epithelial tissue
The _____ system functions to store calcium and phosphate ions and works with the muscular system for movement.
skeletal
What is a key structural feature that distinguishes cardiac tissue from other types of muscular tissues?
the presence of specialized junctions between cells
The diaphragm separates which two body cavities?
thoracic and abdominal cavities
which of the following does not influence skin color? white blood cells oxygen melanin red blood cells blood flow
white blood cells
_____ tissue contains collagen, elastic, and reticular fibers.
Connective
The presence of an extracellular matrix is most characteristic of which tissue?
connective tissue
Sebaceous glands are found in which layer of skin?
dermis
Which of the following is not part of a neuron? dendrite nucleus cell body axon desmosome
desmosome
