Chapter 1 Flashcards
T/F: Homeostasis is a function carried out solely by the cardiovascular and respiratory systems.
False: Homeostasis is carried out in virtually every system.
T/F: In order to maintain overall homeostatic balance, at least several different variables must be monitored and regulated.
True
T/F: Tissues are made up of several different but closely related organs.
False: Tissues are made of groups of related CELLS.
T/F: Negative feedback mechanisms are characterized by having the output shut off the original effect of the stimulus or reduce its intensity.
True: The key to negative feedback is that some variable is out of balance and is brought back into balance.
T/F: A homeostatic mechanism has at least three parts: receptor, control center, and effector.
True
A person with appendicitis will most often present with pain in the
right lower quadrant
The plane that divides the body into anterior and posterior parts is called the
frontal plane
A result of homeostatic imbalance could be
illness
Approximately what percentage of the air we breathe is made of oxygen?
20%
The cranial cavity is part of _ body cavity.
dorsal
The dorsal body cavity houses the cranial and vertebral cavities, whereas the _ cavity houses the thoracic and abdominopelvic cavities.
ventral body
The _ system consists of the nasal cavity, pharynx, larynx, trachea, bronchi, and lungs.
respiratory
The _ system houses several organs, the largest of which is the spleen.
lymphatic
Release of oxytocin to increase the strength of labor contractions would be an example of _ feedback.
postive
The spinal cord is located in the _ body cavity.
dorsal
Which of the following body systems acts as a fast-acting control system for the body?
nervous system
While the circulatory system circulates the blood cells, the _ system produces blood cells.
skeletal
Which one of the following requires magnification to study?
histology
T/F: Visceral serosa cover organs.
True, visceral pericardium
If the human body temperature drops below 37° C, metabolic reactions become _.
slower
Blood clotting when the lining of a blood vessel is injured is an example of _ feedback system.
positive
In the anatomical position the thumbs point _.
outwards or laterally
The _ divides the body in two equal but nonidentical left and right parts along the midline
median or midsagittal plane
A _ section divides the body into left and right parts that are parallel to the midline.
parasagittal
The spinal cord lies in the _ cavity.
dorsal
The body cavity which houses the lung is known as the
pleural cavity
If you know that the appendix lies in the right lower part of the trunk, you could also say it lies in the
right inguinal region
The _ covers the outer surface of organs in a body cavity.
visceral serosa membrane
The cavity between bones at the joint is known as
synovial cavity
Positron emission tomography (PET) excels in observing _
metabolic processes.
All the following are true about serous fluid, EXCEPT that __________.
- it increases the friction produced by the movement of the organs with which it is associated
- it is secreted by both visceral and parietal serosa
- it fills the potential space between the visceral and parietal serosa
- it allows freedom of movement between the two layers of serosa
it increases the friction produced by the movement of the organs with which it is associated
lines the pericardial cavity
parietal pericardium
covers the heart
visceral pericardium
lines the thoracic cavity
parietal pleura
covers most organs in the abdominopelvic cavity
visceral peritoneum
lines the abdominopelvic cavity
parietal peritoneum
nasal
nose
oral
mouth
frontal
forehead
orbital
eye
