terminology
Prone v/s supine
prone: body face down
supine: body laying face up
what are the 5 functions of the skeletal system?
support, protection, movement, storage, hematopoiesis
What are the 5 fuctions of the skin?
protection, temperature regulation, sensory organ, excretion, synthesis of vitamin D
Linear guide
imaginary line drawn on the surface of the body which represents the approximate loacation of an underlying structure
what are the 3 types of muscle? Are they striated, or nonstriated? Involuntary or voulentary? Where are they located?
cardiac- cross striations, involuentary, (heart)
smooth muscle- nonstriated, involuentary ( small intestines)
skeltal muscle- striated, voulentray (intercostal muscles)
Sagital plane
lengthwise plane that divides the body into front and back
What are the 4 types of bones?
long, short, flat, irregular
Tiny smooth involuntary muscles that contract when we are frighetned or cold
arrector pili
located betweeen the ribs/intercostal muscles and the anterior/posterior axillary folds, contains the axillary artery, axiallary vein, and the brachial plexus (within the axillary sheath)
What are the 3 functions of skeletal muscle?
movement, posture, heat production
What are the 4 subdivisions in the Ventral Cavity?
thoracic, mediastinum, pleural cavity, abdominal pelvic
What is the difference between cancellous bone & compact bone?
cancellous bone- (spongey bone) porous bone tissue on the insdie of the individual bones
compact bone- outter layer of bone that is hard and dense
what are the two groups of Sudoriferous Glands
eccrine
apocrine
Explain the femoral triangle
based on the ingunal ligament, contains the femoral artery, femoral vein, femoral nerve, located within the femoral sheath
What position are your hands in during anatomical position?
supination
The axial skeleton is made up if the...
head, neck, and torso
Cartilage structure:
chondrocytes; located in the lacunae
No blood vessles
What is the layer between the dermis and epidermis called
dermal-epidermal junction
What are the antaomical limits for the anterior cervical triangle?
Right: steroclavicular articulation--> anterior base of the earlobe
Left: second costal cartlidge--> superior border of the thyroid cartlidge
what is the. differnece between a muscles origin and inseriton?
origin- muscles attach to the more stationary bone
insertion- attachment to the more moveable bone
What are the levels of orginization? (smallest to largest)
chemical, cellular, tissues, organs, system
how many sinues are there? What are they?
frontal sinuses- frontal bone
maxiallary sinuses- maxilla
sphenoid sinuses- sphenoid
ethmois sinuses- ethmoid
What are the two layers of the dermis?
papillary layer
reticular layer
Explain the Anterior Cervical Triangle
located in the front of the neck, contains the jugular vein, common carotid artery, and vagus nerve (within the carotid sheath)
Describe the Sliding filament model
sarcomeres divide into two myofillaments of protein called actin & myosin, actin gets blocked by tropomyosin & troponin, action potential causes calcium to be released, calcium then bind with troponin, tropomyosin pulls away from the actin strand. Myosin binds to ATP which then breaks down to ADP. Myosin then binds with actin, the sarcomere then shrinks and contracts. ADP unbinds and ATP re-binds with myosin causin myosin to release actin and the muscle relaxes