5 Written questions
5 Matching questions
- When muscle cells break down glucose to generate ATP under oxygen deficient conditions, they will form ________.
B) lactic acid
D) fatty acids
- Slow oxidative muscle fibers are best suited for ________.
A) lifting heavy weights at the gym
B) running a 100-yard dash
C) running a marathon
D) hitting a baseball
- Which type of muscle CANNOT contract without being stimulated by the nervous system?
- Immediately following the arrival of the stimulus at a skeletal muscle cell there is a short period called the ________ period during which the neurotransmitter is released by exocytosis, diffuses across the synaptic cleft, and binds to its receptors.
- What is the name given to the regularly spaced infoldings of the sarcolemma?
- a C) running a marathon
- b Latent
- c Transverse or t tubules
- d B) lactic acid
- e A) skeletal
5 Multiple choice questions
5 True/False questions
Muscle tissue has all of the following properties except ________.
contractility → sarcolemma
What is the most distinguishing characteristic of muscle tissue?
A) the ability to transform chemical energy into mechanical energy
B) the ability to respond to nervous stimulation
C) the diversity of activity of muscle tissue
D) the design of the fibers → A
The binding of calcium to which molecule causes the myosin binding sites to be exposed?
(This is a regulatory molecule) → Troponin
The first step toward generating a skeletal muscle contraction is ________.
A) binding of the myosin heads to actin
B) a rise in intracellular Ca2+ levels
C) binding of ATP to the myosin heads
D) stimulation of the muscle by a nerve ending → somatic motor neurons
The distance between Z discs ________ during muscle contraction.
C) decreases and then increases
D) stays the same → insertion