Which of the following chemical messengers decreases heart rate?

What will be an ideal response?


Acetylcholine

Anatomy & Physiology

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Nerves carrying sensory information from the lips and the chin pass through the

A) ramus of the mandible. B) condylar process. C) mental foramina. D) mandibular foramen. E) maxillary foramina.

Anatomy & Physiology

What is the first step in the duplication of a DNA molecule?

a. nucleic acids are added b. DNA unwinds c. prophase begins d. RNA binds

Anatomy & Physiology

This figure shows the femur. The feature indicated by number 6 is the

A. intertrochanteric groove. B. intercondylar fossa. C. medial epicondyle. D. lateral epicondyle. E. popliteal surface.

Anatomy & Physiology

Which structure(s) contain(s) receptors sensitive to linear acceleration?

A. semicircular ducts B. cochlear duct C. utricle D. tympanic membrane

Anatomy & Physiology