| entries | profile | affiliates | tagboard | plugboard | site |






Monday, November 1, 2010


One post right before I go for exam, just to relax and refresh my freaking retarded memory!

Brain

Lesion on the brain stem (right)
Discriminative sensation: touch and pressure (left) via Internal Arcuate Fibres
Non-discriminative sensation: pain and temperature (left) via Lateral Spinothalamic Tract
Associative sensory loss

Lesion on the spinal cord (right)
Discriminative sensory: touch and pressure (right)
Non-discriminative sensory: pain and temperature (left)
Dissociative sensory loss

Upper Motor Neuron Lesion:
Spastic paralysis (increase reflexces, less precise voluntary movement)

Lower Motor Neuron Lesion:
Flaccid paralysis (no movement, no reflexes, wasted muscle)

Lobe:
Frontal lobe: primary motor cortex, Exner's area, Broca's speech area
Parietal lobe: primary somatosensory cortex, supramarginal gyrus, angular gyrus
Occipital lobe: primary visual cortex
Temporal lobe: primary auditory area, Wernicke's speech area

Spinal cord (31 pairs):
Cervical nerves (8 pairs)
Thoracic nerves (12 pairs)
Lumbar nerves (5 pairs)
Sacral nerves (5 pairs)
Coccygeal nerves (1 pair)

Somatic Nervous System:
Disciminative sensation: touch and pressure (myelinated)
Non-discriminative sensation: pain and temperature (non-myelinated) [Anterior White Commisure]
Lower motor neurons (myelinated)
Leg (Gracile Fasciculus)
Arm (Cuneate Fasciculus)

Cerebellar Lesion:
Ataxia (unco-ordinate movement, loss of balance)

Straitum:
Putamen, Caudate Nucleus

Basal Ganglia:
Substantia nigra, Sub-thalamic nucles, Globus Pallidus

Heart:

RA: ~2mmHg
RV: ~25mmHg
LA: ~5mmHg
LV: ~120mmHg

Filling phase = Diastole phase
Ejection phase = Systole phase

RA, RV,Pulmanary trunk, Tricuspid Valve, Superior vena cava, Inferior vena cava, Pulmonary valve, LA, LV, Aorta, Aortic valve, Bicuspid valve (Mitral valve), Chordae tendinae, Papillary muscle

Sinoatrial node -> Atrialventricular node -> Bumdle of His -> Purkinje fibres

1st heart sound: Mitral valve and Tricuspid valve
2nd heart sound: Aortic valve and Pulmonary valve

Cardiac output = Stroke volume x heart rate
Stroke volume affects by preload, contractility, afterload
stroke volume decrease when preload decrease, contractility decrease (negative inothropic agents) and afterload increase

Input Cardiovascular Centre (nerve impulses)
Brain: cerebral cortex, hypothalamus
Sensory Receptor: Proprioceptors (movements), Baroreceptors (pressure), Chemoreceptors (chemical)
Output to heart: Cardiac nerve (sympathetic) increase heart rate and Vagus X nerve (parasympathetic) to decrease heart rate

Autonomic and Endocrine
Sympathetic (preganglionic neuron: acetylcholine and postganglionic neuron: norephnephrin)
Sympathetic (pre: acetylcholine and post: acetylcholine) sweat glands
Parasympathetic (pre: acetylcholine and post: acetylcholine)

Circulating hormones, Local hormones (paracrine, autocrine)

Lipid soluble hormone (receptor in nucleus) Alters gene expression, mRNA, and bla bla bla
Water soluble hormone (receptor on cell membrane) Activates G protein, CAMP as 2nd messenger, phosphorylate enzyme

Stress response:
1. Fight or flight response
2. Resistance response
3. Prolonged stress response

CRH in hypothalamus -> ACTH in anterior pituitary -> Adrenal cortex (cortisol) [Resistance response]
Reaction:
increase glucose, fatty acid bla bla
reduce inflammation
suppress immune system

Alarm response
increase heart rate
dilation of pupils
dilation of bronchus
bla bla bla

Reproductive system:

primodial follicle -> primary follicle -> secondary follice -> mature follice (graafian) -> ovulation -> corpus luteum -> corpus albicans

FSH, LH, Estrogens, Prgesterons

Mullerian ducts (female) Wolffian duct (male)

primodial germ cell -> spermatogonia ->  primary spermatocytes -> secondary spermatocytes -> spermatids -> sperm cells

FSH, LH, testosteron, Leydig cells, Sertoli cells

Bone:
Axial + Appendicular

Axial ( support and haemopoiesis) Appendicular (Movement and fat storage)

Osteogenic cell -> Osteoblast -> Osteocytes and Osteoclast
Epiphysis, Metaphysis, Diaphysis
Spongy bones, compact bones, articular cartilage
Periosteum, compact bones, endosteum, medullary cavity

Spongy bones, trabeculae, lamella
compact bones, harversian cannal
primary osteon, secondary osteon

Articular cartilage
surface zone, middle zone, deep zone, tide mark, calcified cartilage, cement line (Osteochondral junction), subchondral bone

Articular capsule
fibrous layer and synovial membrane

Muscle
Epimysium, muscle, perimysium, fascicle, edomysium, myocytes, sarcolemma, sarcoplasm + myofibrils
Hypertrophy, antrophy, hypoplasia
I band, Z line, A band, M line
Desmin (between myofibrils), Dystrophin (Basement membrane and sarcolemma)
Collagen fibres of mucle blend together with collagen fibres of tendon
Mucle form finger like projections to increase suface area

Lungs (no time)

Digestive system (no time)

Lab (no time)

Got to go!! Wish me luck peeps!!!

Note: May not be correct!! Is not for reference!!

Labels:



1:54 PM | back to top



Disclaimer


READ AT YOUR OWN RISK!

Rewind


Spam Me!
Colleen Toh

Create Your Badge


Share on Tumblr

Ads

Wishlist
Bungy jumping
Sky diving
Watch a live NBA match
Magic mushroom
Disneyland
Universal Studio
Trip to UK
Trip to USA
Trip to Hawaii
Trip to Amsterdam
Trip to Queenstown
Trip to Japan
Trip to Ohrid
Trip to Korea
Trip to Pataya
Trip to Bangkok
Trip to Redang
Trip to Bali
Trip to Gold Coast
Trip to Paris
Trip to Rome
Trip to Hong Kong
Trip to Maldives
Trip to Taiwan

Hit Me
web counter
free web hit counter