QUESTION 24 In general tems, what sort of distance do graded potentials die out

Question

QUESTION 24 In general tems, what sort of distance do graded potentials die out over? 1.Graded o 2.Long O 3.Active o 4.Short QUESTION 25 What ensures the one-way propagation of an action potential away from the initial site of activation? O 1. The activation period O 2.The refractory period O 3.The graded period O 4.The inhibition period QUESTION 26 In addition to myelination, what else influences the speed with which an axon can conduct action potentials? o 1.Fiber length O 2.Size of the cell body O 3.Fiber diameter O 4. Number of dendrites QUESTION 27 What are the main regulatory systems of the body? O Nervous and endocrine Skeletal and digestive O Nervous and skeletal O Muscular and Skeletal

Explanation / Answer

24) The correct option is 1. Graded.

Graded potentials are smaller voltage potentials which vary in their voltage between 1 and 50 mV. Graded potentials die out over a short distance.

25) The correct option is 2.Refractory period.

The refractory period ensures unidirectional propagation of the action potential. It ensures the one-way direction of an action potential away from the initial site of activation. It is a period immediately stimulation during a nerve or muscle is unresponsive to further stimulation.

26) The correct option is 3.Fiber diameter.

The larger the diameter of an axon, which increases the rate and speed of conductance of action potential

27) The correct option is Nervous and endocrine.

Two types of communication systems. These are the nervous system and the endocrine system. They regulate body processes with the help of chemical and electrical signals, which pass between cells.

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.