Muscular system 1
___________ is a capacity for the muscle to shorten in response to a suitable stimulus
Contractility
Masseter muscle
This condition is a calcuim deposit in the plantar fascia near its attachment to the calcaneus bone, it can be one cause of plantar fasciitis.
Heel spur
Production of energy with the use of oxygen is called__________.
aerobic respiration
Bacteria that releases a toxin triggering overactivity of the nervous system which leads to painful muscle spasms
Clostridium tetani
When the nerve impulses reach the end of the axon, this chemical neurotransmitter is released
Acetylcholine
This is a sustained contraction of the muscle. Often referred to as a cramp.
Muscle spasm
This term is used to describe muscle pain
myalgia
Muscles that work with prime movers by providing the opposing action is the _____________.
Antagonist
An injury often referred to as lateral epicondylitis, occurs when the tendon that connects the arm muscle to the elbow becomes inflamed.
Tennis elbow
Which muscle cells have more than one nucleus, are striated and are controlled voluntarily?
Skeletal
The energy required for muscle contraction is obtained from_________
Adenosine Triphosphate
A type of dystonia which affects the muscle controlling the eye blink, causing increased blinking.
Blepharospasm
Weakness of a muscle that allows protrusion of organs through an opening in the muscle
hernia
The antagonist of the biceps brachii
triceps brachii
Often referred to as dilator muscles, are special circular muscles in the openings between the esophagus and stomach, and the stomach and small intestine.
Sphincter muscles
Which muscle is primarily being used when the foot is dorsiflexed; permits walking on the heels
Tibialis Anterior
A group of diseases in which the muscle cell deteriorates. It is caused by a genetic defect.
Muscular dystrophy
A dome-shaped muscle separating the thoracic and abdominal cavities. Helps control breathing.
Diaphragm
The straight muscle located in the anterior thigh, which flexes the thigh and extends the lower leg
rectus femoris
What are 3 general functions of the muscular system
Body Movement
Heat Production, to maintain body temperature
Body form and shape, to maintain posture
After a muscle contraction, the events that return the cell to a resting phase include the diffusion of what two (2) ions
Potassium and sodium ions
Muscle weakness occurs when the connection between the muscle and nerve is lost.
Myasthenia gravis
Broad sheet of shiny white connective tissue that connects muscles
Fascia
The most common sites for an intramuscular injection are the deltoid muscle, dorsal/ventral gluteal area and the: This term means anterior thigh
vastus lateralis