| Question | Answer |
| FASCILE PATTERNS | REFLECTS MUSCLE ACTION
DETERMINES RANGE OF MOTION & POWER |
| PARALLEL | FASCILE PARALLEL TO MUSCLE
FIBER EXTENDS FROM ORIGIN TO INSERTION
STRAP -STERNOCLEIDOMASTIOD
FUSIFORM W/ BELLY- BICEPS BRACHII |
| CONVERGENT | TRIANGULAR, FAN SHAPED, FIBERS EXTENDS LENGTH OF MUSCLE
BROAD ORGIN - FASCICILE CONVERGE TO INSERTION
PECTORALIS MAJOR |
| PENNATE | SHORT, OBLIQUELY ATTACHED FIBER, TENDON EXTENDS LENGTH OF MUSCLE
UNIPENNATE- ATTACH TO 1 SIDE OF TENDON: EG: FLEXOR POLLICIS
BIPENNATE - ATTACH TO BOTH SIDES OF TENDON, RECTUS FEMORIS
MULTIPENNATE- SEVERAL BIPINATES INSERT INTO 1 TENDON, DELTOI |
| CIRCULAR | FASCICLES ARRANGED IN RINGS, SPHINCTER |
| HIGHEST TO LOWEST IN MUSCLE | 1. ENTIRE MUCLE
2. FASCICLE
3. MUSCLE CELLS (MUSCLE FIBER, MYOFIBER)
4. MYOFIBRILS- GROUPS OF THIN & THICK MYOFILATMENTS
5. THIN & THICK MYOFILAMENTS
6. SARCORMERE - SMALLEST CONTRACTING UNITS |
| HOW THE SARCOMERE CONTRACT | THIN FILAMENTS PULLED PAST THICK TO CENTER OF SARCOMERE |
| A BAND | THIN AND THICK OVER LAP |
| I BAND | THIN ONLY AND Z LINE |
| M LINE | ANCHORS THICK |
| H ZONE | BTW END OF THIN WHEN RELAXED |
| TITINS | CONNECTS THICK TO Z LINE
ALLOWS SARCOMERES TO RETURN TO RESTING LENGH WHEN CONTRACTING ENDS |
| MUSCLE FUNCTIONS | 1. MOVEMENT
2. MAINTAINS POSTURE
3. JOINT STABILITY
4. HEAT PRODUCTION - 85 %
CHEM ENERGY - MECH ENERGY
ATP -CONTRACTION |
| CHARACTERISTIC OF MUSCLE | EXCITABILITY - RECEIVE RESPOND TO STIMULI - NEURON/MUSCLE CELL
2. CONTRACTABILITY - SHORTEN WHEN STIMULATED
3. EXTENSIBILITY - EXTENDS PAST RESTING LENGHT
4. ELASTICITY - RETURN RESTING LENGHT |
