Tissue
What are the four types of tissue?
Epithelial, Connective, Muscle, Nerve
What type of muscle tissue allows the heart to beat?
Smooth muscle tissue.
Where are red blood cells formed?
Bone marrow
The basic unit of the nervous system.
The neuron.
What is the trachea and why is it hard?
The hard tube in your neck; it is hard, so it doesn’t collapse
What is tissue?
Tissue is a group of cells that perform the same function.
What is the purpose of valves and where are they found?
Between each heart chamber; prevent blood from going backwards.
What are the four functions of bones?
Protection, shape, produce blood, movement
What organs make up the CNS?
Brain and spinal column.
Name an organ that is superior to the stomach.
Answers may vary (any organ that is above the stomach.
What type of tissue is our skin?
Epithelial
What causes the heart to beat?
Electric impulses from the SA node in the right atrium
What is a joint and what are the two types?
The junction of two or more bones - Ball-and-socket – rotates bones around larges degrees. Shoulder and hip; Hinge – more limited movement, back and forth. Elbow and knee
What (CNS or PNS) consists of the autonomic nervous system and what does it do whether you’re stressed or relaxed?
PNS; heart rate/breathing speeds up when stressed
What is the path of air in the body (4 steps)?
Nose/Mouth, Trachea, Lungs, Alveoli
What are the three types of muscle tissue and how are they different?
Striated muscle is found in muscle that moves voluntarily, Cardiac muscle is found only in the heart, Smooth muscle does not move voluntarily, like in the walls of organs and blood vessels
What is the diff between arteries, capillaries, and veins?
Arteries – away; capillaries – small arteries; veins – towards heart
What are four bones and three muscles we learned in class?
Mandible, Clavicle, Sternum, Humerus, Ulna/Radius, Phalanges, Femur, Tibia/Fibula, Spine; Deltoid, biceps brachii, triceps brachii, vastus intermedius, gluteus maximus
What organ is responsible for reflexes?
Spinal cord.
Someone has a bullet lodged in their femur. Which bone is distal: mandible or the tibia/fibula?
Mandible.
What is nerve tissue and what does it do?
Very specialized cells that send messages throughout your body, like telling muscles when they should move
Describe the path of blood through the heart and body.
RA, RV, lungs, LA, LV, aorta, rest of body
What is the overall process to lift your leg?
Brain thinks to lift it. Sends nerves to leg muscles. Leg muscle tells tendon to move. Tendon moves bone, which moves your leg. (or if there is no tendon, there is one less step)
What does the PNS consist of?
Nerves that are found on the outside of your body and nerves in your brain.
What is the purpose of Alveoli?
Allow oxygen to get into your blood