The Skeletal system
How many bones are in the human body?
206
What does the orbicularis or is do?
Closes the eyelids
The brain, spinal cord and spinal and cranial nerves make up the:
Central nervous system
what is the sticky, salty fluid that circulates through the body, bringing nourishment and oxygen to all parts of the body?
Blood
What is the name of the gel-like substance containing water, salt and nutrients that cells are composed of?
Cytoplasm
Which bone makes up the lower jaw and is the largest bone of the face?
Mandible
Which of the following arteries supplies blood to the thumb side of the arm and hand?
radial
Which organ processes oxygen for absorption into the blood and release carbon dioxide when you exhale?
Lungs
Which artery supplies blood to the crown and sides of the head?
Parietal
Thread-like fibers that extend from the nerve cell and bring information to the cell body are called:
Dendrites
The outer and narrower of the 2 lower leg bones, extending from the knee to the ankle, is known as the:
Patella
which type of muscle responds automatically to control various body functions?
Non-striated
Hair growth, skin conditions and energy levels are all controlled by the:
Endocrine system
What is another name for red bloodcells?
Erythrocytes
The chemical process in which cells receive nutrients for cell growth and reproduction is known
Metabolism
The 8 carpals held together with ligaments make up the:
Wrist
The muscle of the heart itself and the only muscle of its type in the human body is the:
Cardiac muscle
Motor nerves carry messages from the brain to the muscles and are called
Efferent
A subsystem of the circulatory system responsible for distributing white blood cells to help develop immunity:
Lymph-vascular system
What tissue covers and protects body surfaces and internal organs?
epithelial tissue
The outer and narrower of the 2 lower leg bones, extending from the knee to the ankle, is known as the:
Fibula
The muscle that aids in drawing the head back and elevating the shoulder blades is known as:
Trapezius
Breaks down protein into polypeptide molecules and free amino acids
Enzymes
The heart muscle is entirely encased in a membrane called the:
Pericardium
The release of energy within a cell necessary for the performance of specific body functions is caused by:
Catabolism