The heart muscle is said to have automaticity, which means that ________
A) the nerves that innervate the heart cause the heart to beat automatically
B) the heart has a built-in automatic nerve
C) the heart muscle depolarizes and contracts spontaneously without external stimulation
D) the heart muscle beats in a regular rhythm
Answer: C
Anatomy & Physiology
You might also like to view...
Which bone forms the prominence of the cheek?
A) sphenoid bone B) temporal bone C) palatine bone D) zygomatic bone
Anatomy & Physiology
What is the purpose of the male bulbourethral gland?
What will be an ideal response?
Anatomy & Physiology
The cartilage rings of the trachea are shaped like an O
Indicate whether the statement is true or false
Anatomy & Physiology
What kind of receptor are the hair cells on the basilar membrane?
A. Photoreceptor B. Nociceptor C. Mechanoreceptor D. Chemoreceptor
Anatomy & Physiology