Which of the following is NOT true regarding myogenic smooth muscles? Question 2 options: Their contractility is affected by autonomic input. Slow-wave potentials are found only in the digestive tract. When the basic electrical rhythm oscillates above threshold, gut motility increases. Slow waves propagate via chemical synapses between enteric nerves and smooth muscle cells lining the GI tract.
Added by Catherine L.
Step 1
Myogenic smooth muscles are capable of generating their own contractions without requiring external nervous stimulation. They are influenced by various factors, including stretch and local chemical signals. Show more…
Show all steps
Your feedback will help us improve your experience
Sri K and 66 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Which of the following does NOT describe a basic regulator of digestive control? - Short reflexes act locally in the GI tract. - pH, stretch, and osmolarity are some of the inputs that can initiate digestive responses. - conscious neural control - Digestive effectors are smooth muscle and glands.
Sri K.
Smooth muscle can be stimulated in many ways. Click and drag each description and/or location of stimulation on top to the mechanism of stimulation it describes. - Sarcolemmas of the small intestine spontaneously depolarize, resulting in wavelike patterns of smooth muscle contractions. - Parasympathetic nerves secrete acetylcholine, which stimulates gastrointestinal motility. - Arrector pili muscles contract, causing hairs to become erect and goosebumps to form on the skin. - The presence of food distends the stomach wall, resulting in contraction of the smooth muscle. - Oxytocin stimulates the myometrium to contract during childbirth. Chemical Stimulation Stretch Autorhythmicity Temperature Reset
Anand J.
Smooth muscle differs from both cardiac and skeletal muscle in that $a$ it can act as a pacemaker for rhythmic contractions. b. contractions of smooth muscle are not due to interactions between neighboring microfilaments. c. neighboring cells are electrically connected by gap junctions. $d$ neighboring cells are tightly coupled by intercalated discs. $e$ the membranes of smooth muscie cells are depolarized by stretching.
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
Transcript
Watch the video solution with this free unlock.
EMAIL
PASSWORD