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38 Cards in this Set

  • Front
  • Back
critically low glucose

crtically high glucose

dont do PT if it is above...
40-100

700

300
What appears to be the cause of fatigue (besides mental issues)?
atp depletion
CA+ inside problems
decrease plasma glucose
accumulation of metabolic acids
oxygen debt is:

Is there ever time without it?

Oxygen debt is about equal to...

What is a test that actually uses this term?
the term used to describe the increase over BMR in O2 use in recovery.

NO

energy consumed minus that supplied by oxidative metabolism.

do gage anaerobic and anaerobic verses recovery time.
What determines the kind of muscle the fiber will be?
NERVE: determines synthesis of fast and slow isoforms.

(they all begin as type I)
What is the most used atheletic drug?

Whats the best way to train reguarding altitude?
EPO- increases RBC's

live in altitude and train at sea level.
Baseline EMG =

What is EMG measuring?
0.0 (because we are measuring the entire muscle, not one cell)

sum of action potentials between the recording electrodes
Atrophy is...

Why should you cast a leg in a stretched postion?
decrease in SIZE of cells

you will loose sacromeres, so you save yourself....
Oxygen Debt=
measures the increasein BMR in 02 use in recovery.
What is the most used atheletic drug?

Whats the best way to train?
EPO- increases blood levels

Live in elevation and train at sea level
Your EMG recording depends on what 4 things?

What is an example of an abnormal EMG?

What indicates the health of the nerve?

Friction decreases with...

Normal speed?
1. distance between current and recodring electrode

2. size of muscle fibers

3. number of muscle fibers in that motor unit

4. amount of fat

spontaneous activation of a motorunit- fasiculation and fibrillation

latency

Size

30-50
malignant hyperthermia can happen two ways

cure=

or what will happen?
1. exposed to halothane anesthesia in dental chairs
2. defect in ryanodine receptor gene

INSTANT dantolyene injection in like 3 minutes

- uncontrolled CA+ pumps generates too much heat, increaese temp, muscles get rigid- which blocks NA+ which blocks release of calcium in skeletal muscles)
Mypotonia Congenita like ____ is due to a defect in the chloride channel family.

Results in...
cystic fibrosis

slowed muscle relaxation after activation

GOATS!!
Malignant Hyperthermia is common in kids with...
MD
Dermatomes =
area of skin innervated by sensory fibers from one spinal nerve (dorsal root)
Where is the ONLY place in the body where there is a reflex including ONLY a sensory and motor nerve?

Describe these...
A spinal reflex acr (stretch reflex)

stimulated by IA afferent receptors, CAN occur in the absence of the rest of the CNS!

** contraction of ipsilateral muscle***
Where are GTO's found?

GOT's respond to...

What shape are MUSCLE SPINDLES?

What innervates MUSCLE SPINDLES?
Musculo Tendonous Junction

Muscle contractino OR excessive stretch.

fusiform shape

GAMMA MN ** gets these intrafusal muscle fibers.
What MN goes to the extrafusal sacromeres, contributing to STRENGTH?
ALPHA
Most common place of damage (of the muscle?)
musculotendonous junction
Alpha Gamma Coactivation=
when the alpha MN cause extrafusals to contract
and the Gamma MN cause spindles to contract- so they stay proportional to the muscle length!
Intrafusal muscle fibers are _______ active

That means they can generate action potentials at...
tonically

the resting length of the muscle
** they INC when the spindleis stretched and DEC when the spindle is slack!!
Structure of the Spindle is All contained in..

When a muscle is stretched or released, both type of spindle afferent endings .....

Name and quickly describe the two endings-
gelatinous Fluid

acheieve a new steady state firing pattern that reflects the muscle length.

Primary Ia= innervate all intrafusals, firing pattern derives form combined effect, sensitive to velocity of stetch and small changes

primary II= dont innervate dynamic bag fibers, firing pattern reflects properties of static intrafusal fibers.
Intrafusal Creep refers to the fact that initially...
the central portion is quickly deformed, but recoil as the polar region accomodate strretch
Whats a good take home message to the existance of primary and secondary muscle spindle nerve fiber endings...
combo of info of these sensory endings allows brain to interpret whats going on.



BTW its primaryIA and Secondary II

So the brain knows the nerve wasnt cut, it was just released
Can you activate Gamma MN independant of Alpha MN?
Yes (in ventral horn)

And your body can, through training, make the Gamma MN hypersensitive- like a gymnast on a balance beam. Because the gamma MN influecnes the amount of volitional muscle force produced by increasing discahrge of primary IA, the activate alpha mN

What a mounth full!
what two diseases will you see physiologic contractures in?

what about pathologic contractures?
What causes this muscle shortening?
MkArdle Disease and Malignant Hyperthermia (these are temporary contractures)

MD, heel cord, and CNS injury. (these are permanent contractures)

failure of ca+ pump in the presence of atp.
Myotonia=

treated by:
delayed relaxation after voluntary muscle movement. This is a membrane abnormality.
chloride imbalence increases membrane excitability- but not the relaxation delay- that is kinda unknown.

drugs that reduce excitability ex) verapamil..
People with McArdle disease, lack...

how come organs arent involved?
phosphorylase, an enzyme responsibile for the breakdown of glycogen in the muscle.

phosphorylase is limited to muscles.
Give a simple realtionship of DHP and RYR
Further experiments showed that DHP agonists changed RyR activation by suppressing Ca(2+)-induced inactivation of the channel.
most common congenital defect of the upper extremity
Syndactyly (webbing of the fingers)
Just because I said so, what do GTO's literally do again?

What kind of existance does retinoblastoma have?

MG has ___ _____ on atpase
inhibit ipsilateral and stimulate contralateral
**** no sarcomeres and NO MN

variable

esteric inhibition (and can be trained to decrease)
what energy system needs mitochondria
citric acid (NOT GYCOLYSIS)
Azotemia
kidney problem, is a medical condition characterized by abnormal levels of nitrogen-containing compounds, such as urea, creatinine, various body waste compounds, and other nitrogen-rich compounds in the blood.
Hyper/hyponatremia
The electrolyte disturbance exists in humans when the sodium (Natrium in Latin) concentration in the plasma falls below 135 mmol/L. At lower levels water intoxication may result, an urgently dangerous condition. Hyponatremia is an abnormality that can occur in isolation or, as most often is the case, as a complication of other medical illnesses. Most patients with chronic water intoxication are asymptomatic, but may have symptoms related to the underlying cause. Severe hyponatremia may cause osmotic shift of water from the plasma into the brain cells. Typical symptoms include nausea, vomiting, headache and malaise. As the hyponatremia worsens, confusion, diminished reflexes, convulsions, stupor or coma may occur. Since nausea is, itself, a stimulus for the release of ADH, which promotes the retention of water, a positive feedback loop may be created and the potential for a vicious circle of hyponatremia and its symptoms exists.
SIADH=

hyperexia=
The syndrome of inappropriate antidiuretic hormone (SIADH) is a condition commonly found in the hospital population, especially in patients being hospitalized for central nervous system (CNS) injury. This is a syndrome characterized by excessive release of antidiuretic hormone (ADH or vasopressin) from the posterior pituitary gland or another source. The result is hyponatremia, and sometimes fluid overload



over 106
Sarcoidosis
is an immune system disorder characterised by non-caseating granulomas (small inflammatory nodules) that most commonly arises in young adults
Phocomelia
Congenitial disorder involving the limbs. It presents at birth very short or absent long bones and flipper-like appearance of hands and sometimes feet. Amphibian deformities often take the form of phocomelia, in which the limbs are shortened due to lack or malformation of long bones, as opposed to other forms of dysmelia such as amelia, which is characterized by the complete lack of a limb, or polymelia, the presence of extra limbs, which are often fused together.
Alpha-fetoprotein

Atresia

syringomyelia
glycoprotein

a condition in which a body orifice or passage in the body is abnormally closed or absent

generic term referring to a disorder in which a cyst or tubular cavity forms within the spinal cord. This cyst, called a syrinx, can expand and elongate over time, destroying the spinal cord. Since the spinal cord connects the brain to nerves in the extremities, this damage may result in pain, weakness, and stiffness in the back, shoulders, arms, or legs. Other symptoms may include headaches and a loss of the ability to feel extremes of hot or cold, especially in the hands. Each patient experiences a different combination of symptoms. These symptoms typically vary depending on the extent and, often more critically, to the location of the syrinx within the spinal cord.
Migraines have ______cranial pain
hemi (and vomiting)