the tiny thin walled sacs of the lungs were gas exchange occurs is called ?
Alveoli
300
what is the heaviest organ, TBW 16%, 20 pounds, of this system?
skin
300
what is the longest bone in the body?
femoral femur bone or thigh bone
300
Which muscle type is striated, unicellular, involuntary, controlled by the ANS, and has intercalated disks.
Cardiac Muscle
300
what are the two most general but important characteristics of this system ?
secretes hormones into blood
ductless glands
300
in the cardiovascular system heart pumps blood around a _____________ as it passes thru the body.
closed circuit or system
400
What are the most important functions of this system?
1. protection
2. regulate temp
3. synthesis of vitamin D
4. helps the body respond to stimuli.
400
What are the 5 main functions of this system?
Support
protection
movement
storage calcium and Phosphorus
hematopoiesis RBC and WBC production
400
What, according to research, do nurses and admin staff do better than doctors? good question!
write and spell.
400
what organ in this system serves as an important organ of digestion, but also as an endocrine organ?
the Pancreas.
400
what are the components of the cardiovascular system ?
heart
blood vessels which include arteries veins and capillaries.
500
what accessory structures of this system help body respond to Pain Pressure and temperature changes?
sensory receptors
500
what are the names (2)of the bones that protect the heart and lungs?
ribs. and sternum
500
In the heart their are specialized cardiac Muscle cells that don't contract but instead generate electrical impulses that cause the heart to beat in a rhythmic way. What is the name of this specialized system?
Conduction system
500
What specific gland is found in the mediastinum, in the thoracic cavity.
thymus..
500
Name 5 functions of the respiratory system?
gas exchange
warming of the air
humidifying_____
filtering ________
regulating acid base balance