Lab 9 Flashcards
Primary Function of;-
Heart
Lungs
Muscles
Stomach
Heart: To pump blood around the body, supplying nutrients and oxygen to tissues and cells and also removing CO2 and wastes in the process
Lungs: To transfer inhaled O2 to the bloodstream and enabling the removal of CO2 from the bloodstream
Muscles: To allow movement; whether internally, skeletally or otherwise
Stomach: To break down and digest food so that nutrients can be released and then absorbed
Primary Function of;
Intestinal Tract
Liver
Kidneys
Ovaries/Testes
Intestinal Tract: To further absorb nutrients/water from ingested material (in the form of chyme)
Liver: To produce bile and excrete it. It is also involved in the detoxification of chemicals and the metabolism of drugs
Kidneys: To remove waste products from the blood and regulate fluid levels
Ovaries/Testes: To produce gametes that are essential in sexual reproduction. Also produces necessary hormones
Primary Function of-
Brain
Skeleton
Brain: To integrate information fro all other systems/organs and to ensure proper bodily functions occur. Also responsible for providing conscious thought and higher level processes
Skeleton: To provide protection and a framework for the other organs. It is also involved in blood cell production and calcium storage
Krause Bulb
- type of tactile receptor
- location
- function
*Encapsulated receptor
Location: Mucous membranes of oral and nasal cavity and vaginal and anal canal.
Function: Detect light pressure and low frequency vibration
Lamellated corpuscle
- type of tactile receptor
- location
- function
*Encapsulated receptor
Location: Dermis, subcutaneous tissue, synovial membranes and some viscera
Function: Detect deep pressure and high frequency vibration
Ruffini Corpuscle
- type of tactile receptor
- location
- function
*Encapsulated receptor
Location: Dermis & subcutaneous layer
Function: Detect continuous deep pressure and skin distortion
Tactile corpuscle
- type of tactile receptor
- location
- function
*Encapsulated receptor
Location: Dermal papillae (esp. lips, palms, eyelids, nipples & genitals)
Function: Detect fine, light touch and texture
Free Nerve Ending
- type of tactile receptor
- location
- function
*Unencapsulated Receptor
Location: Widespread in deep epidermis and papillary layer of the dermis
Function: Detect pressure, change in temperature, pain, touch
Root hair plexus
- type of tactile receptor
- location
- function
*Unencapsulated Receptor
Location: Surrounds hair follicles in the reticular layer of the dermis
Function: Detect movement of the hair
Tactile Disc
- type of tactile receptor
- location
- function
*unencapsulated receptor
-Location: Stratum basale of epidermis
Function: Detect light touch, textures, and shapes
Heart Sounds
-Lub Dub
Systolic and Diastolic in terms of lub dub
“lub dub”
Lub = 1st heart sound
-tricuspid and bicuspid valves shut shut together
-as they snap shut, pulmonary and aortic valves open
Dub=2nd sound
-pulmonary and aortic valves snap shut whilst tricuspid and bicuspid open
Systolic = sound (contraction) Diastolic = pause (between S2 and S1) - is when the heart fills up w/ blood
Where to take a pulse (6) (Arm)
- Axillary pulse (underarm)
- Brachial pulse in mid arm(inside of arm - bicep)
- Brachial pulse in cubital fossal (in inside of elbow)
- Radial pulse in distal forearm
- Ulnar pulse in distal forearm
- Radial pulse in the anatomical snuffbox (space between hand and protrusion of radius)
Facial pulse (4)
- Temporal pulse 1 (close to ear)
- Temporal pulse 2 (actually on temple)
- Carotid pulse (one of strongest in body - in the anterior triangle of the neck)
- Facial pulse: where the facial artery crosses the inferior border of the mandible, immediately adjacent to the anterior margin of the masseter muscle)
Blood pressure
- normal blood pressure
- pathological hypertension
- what it is was typically take with
Normal: systolic = 120mmHg (just after heart has finished contracting)
diastolic = 80mmHg (when the heart is relaxed and just before it pumps again)
Pathological hypertension: continually high blood pressure brought on by diseases such as narrowed arteries
-Typically taken with sphygmomanometer and stethoscope
Layers of the eye wall (3)
- Fibrous tunic (composed of sclera & cornea)
- Vascular tunic (comprised of iris, ciliary body & choroid)
- Retina (comprised of Pigmented layer & neural layer)