Introduction to the human body Flashcards
Your brain is a structure composed of different kinds of tissue. What is this kind of structure called?
An Organ
Muscles, bones, and nerves work together to
Make your body move
After you breathe air into your lungs, oxygen from the air goes into your
Bloodstream
The endocrine system produces chemicals that
control both daily activities and long-term changes through hormones
An effect of long-term stress is
homeostasis is disrupted.
One function of the skeleton is to
provide shape and support for the body.
What kind of motion is possible with a hinge joint?
backward or forward
The spaces in bones are filled with a soft connective tissue called
marrow.
Which type of muscle is found only in the heart
cardiac muscle
How do pairs of skeletal muscles work together?
While one muscle in the pair contracts, the other returns to its original length.
How does the skin help regulate body temperature?
by enabling excess heat to escape from the body
Deciding whether to buy a new lightweight helmet that provides less protection than a heavier helmet is an example o
risk-benefit analysis
Organs join to form a(n) ____________________ that performs a major function.
Organ System
The layer of skin that contains nerves and blood vessels is the ____________________.
Dermis
Technology changes ____________________ to meet human needs
Overtime
Homeostasis can be upset by ____________________, which is the reaction of the body and mind to a threatening, challenging, or disturbing event
Stress
The type of involuntary muscle that moves food through the digestive tract is called ____________________ muscle
Smooth
To bend a joint, one muscle extends while another muscle returns to its original length
False
Contracts
Blood cells are produced in red bone marrow.
True
A nutrient is a substance that you get from food and that your body needs to carry out processes, such as contracting muscle
True
The bones that make up your backbone are called tarsals.
False
Vertebra
The outermost layer of the skin is the epidermis.
True
Which type of muscle is indicated by C
C is a skeletal muscle
Tell whether each type of muscle tissue is voluntary or involuntary.
A is involuntary b is involuntary c is voluntary
When you use a pencil for writing, which type of muscle — A, B, or C — moves your fingers?
A skeletal muscle
What structure is represented by A? What are the parts of this structure
A is a cell have the cell membrane nucleus and the cytoplasm
Identify the body system represented by D. List three structures that are part of this system.
Is a skeletal system is made up of the vertebra, Skull,
Firmer
Explain what functions this system performs in your body.
Help you move
