Put the following steps for a muscle contraction in the correct sequence. (1) depolarization arrives at the sarcoplasmic reticulum and calcium is released. (2) actin myofilaments are pulled closer together over myosin myofilaments. (3) calcium floods the sarcoplasm and binds to troponin. (4) depolarization arrives at the synaptic end bulb and causes release of the neurotransmitter. (5) tropomyosin moves to expose active sites allowing actin and myosin to form linkages. 

The statements concerning the four tissue types are all true except

The statements concerning depolarization of neuron cells are all true except

Decreasing or impaired vision could be a result of all the following except

The following statements are all true except

In one or two words, give the meaning of myo-

A lacuna is the space inside hollow organs such as the intestines.

A peripheral runoff involves arteriography of the:

What kind of catheter is highlighted in green?

The echo pattern of a cyst scanned in ultrasound can be referred to as: