23- The following actions are performed by the sympathetic system except one A.

Question

23- The following actions are performed by the sympathetic system except one A. This cause blood vessels to constrict and raises blood pressure B Increase sweating by the sweat glands C Arrestor pili contraction D. Ejaculation of semen by the penis or reflex contraction on the vagina E Increase peristalsis activity in gastrointestinal tract 423-Ofwhich plexus the phrenic nerve is the most ingportant A Brachial Plexus B Lumbar Plexus C. Cervical Plexus D Sacral Plexus E. Coccygeal Plexus 25. -It is the nerve that innervate genitalsin the body A Radial Nerm

Explanation / Answer

Lymphatic system dnt cause the contraction of arrector pili

Phrenic nerve arises from cervical plexus

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