Chapter 5 - Human Body Flashcards
Epiglottis
Tiny flapper valve that keeps food from entering the larynx
Respiratory System
Nose (nasopharynx) Mouth (oropharynx) Throat Larynx (voice box) Trachea (windpipe) Epiglottis Passages in the lungs (bronchi and bronchioles) Alveoli
Alveoli
Tiny air sacs in the lungs surrounded by capillaries
The 2 upper chambers of the heart
Atriums
The two lower chambers of the heart
Ventricles
Atrium which receives blood from the veins
Right atrium
Atrium which receives blood from the lungs
Left atrium
Ventricle that pumps blood to the lungs
Right ventricle
Ventricle that pumps blood to the body (also the most muscular chamber)
Left ventricle
The three major arteries, used to check pulse
Neck (carotid)
Groin (femoral)
Wrist (radial)
The three functions of the skeletal system
Support the body
Protect vital structures
Manufacture red blood cells
The five sections of the spine
Cervical spine (neck) Thoracic spine (upper back) Lumbar spine (lower back) Sacrum (base of the spine) Coccyx (tailbone)
Components of the upper extremities
Upper arm - humerus
Forearm - ulna (medial) and radius (lateral)
Wrist and hand
Shoulder girdles
Proximal portion of the upper extremity; each is made up of the clavicle, the scapula, and the humerus
Components of the rib cage
Sternum
Twelve sets of ribs that protect the heart, lungs, liver, and spleen
The upper five sets connect directly to the sternum
The sixth-tenth sets connect to each other with cartilage, and then the sternum
The eleventh and twelfth sets are floating ribs