Musculoskeletal, Circulatory, & Respiratory Unit test Flashcards
What is the purpose of the muscular system?
To pull on the skeletal system and help assist with movement.
What is the purpose of the Skeletal system?
To provide structure and support for the body’s form
How do the muscular and skeletal systems work together to allow us to move?
The muscular system pulls on the skeletal system, where the skeletal system provides us with an upright stance.
What are the four functions of the skeletal system?
Blood production, protection, storage of minerals, movement.
How do the four functions of the Skeletal system work?
Bones provide support and protection for the body’s internal organs. Spongy bone and compact bone store minerals and materials, Skeletal muscle and joints help with movement, Bone marrow produces Red Blood Cells.
Name the 3 types of joints and give examples of each
Gliding joints : Wrist
Ball-and-socket joints : Hip, Shoulder
Hinge Joints : Elbow
Where is smooth muscle located? What does smooth muscle look like? Is it voluntary or involuntary?
Involuntary. Found on the walls of the digestive tract, bladder, veins, arteries, and other internal organs. Elongated, thin, have one nucleus, and for sheets rather than bundles.
Where is Cardiac muscle located? What does Cardiac muscle look like? Is it voluntary or involuntary?
Involuntary. It is located only at the heart. A cross between smooth and striated (skeletal) muscle.
Where is Skeletal muscle located? What does Skeletal muscle look like? Is it voluntary or involuntary?
Voluntary. Cylindrical, contains many nuclei, crossed with alternating light and dark bands called striations. The fibers bind and form muscles.
What are the light and dark alternating bands found in skeletal muscle called
Striations
Tendons
Muscles to bones
Ligaments
Bone to bone
Cartilage
In between bones : A cushion
How do muscles work in pairs?
Extensors and Flexors (Extensors: Extending/Flexors: Contracting)
What is the purpose of the Circulatory system?
A collection of organs that transport blood throughout the body
what organs are in the circulatory system?
Heart, Veins, Arteries, Capillaries, blood.
What does the left side of the heart do
Pumps oxygen-rich blood to the body.
What does the right side of the heart do?
Pumps oxygen-poor blood to the lungs.
Ventricles v.s Atriums
Atriums are the top parts of the heart, Ventricles are the lower.
What is the function of blood
A fluid that transports gases, nutrients, and waste through the body. Transports oxygen.
When is the only time Arteries don’t deliver deoxygenated blood to the heart?
Pulmonary loop, when it goes to the lungs
Pulmonary circulation
Flow of blood from the heart to the lungs.
Systemic Circulation
Flow of blood to all parts of the body and back to the heart
Valves purpose in the heart
Valves open and close with each heartbeat, releasing oxygenated blood.
