Which of the following is not a visceral reflex?
822677
D) cremaster reflex\n\nThe cremaster muscle is a skeletal muscle and is controlled by the somatic motor neurons.\n\nAll other reflexes are mediated by the visceral motor neurons of the autonomic nervous system.
1159021
It's much harder to control your bowel movement than your urinary release because in your rectum you have the external sphincter (which is voluntary) and the internal sphincter (involuntary), the space in between them is not alot of space and therefore the need to empty it is greater due to the involuntary sphincter.  in the urinary tract, the release is almost completely voluntary!
879514
No. I didn't. Was it Irritable Bowel Syndrome?
718855
I think that it goes along the same lines as the reason we get stomach craps during exercise. The majority of blood is directed to the muscles, not the internal organs. Digestion stops during exercise because the majority of blood is directed to the muscles; I am sure that the same goes for the kidneys. Also this happens when the sympathetic nervous system is activated.
588643
mammalian gland reflex, to complicated to explain, look it up online...
351086
I kind of had a hard time understanding the last part of the question, but I tried to answer anyway.\n\nThe Sympathetic Nervous System (SNS) is also called the "fight or flight" system. It helps the body cope with emergency situations where it might have to defend itself (fight) or escape (flight). It causes increased heart rate, bronchodilation (your airways to get smaller), shaking, dry mouth, and blood to go to the skeletal muscle (muscle we use voluntarily).\n\nAs for the gastrointestinal tract, it will slow or completely stop digestion and defecation (pooping). Like I said before, you have an increased heart rate, and most of the blood goes to your skeletal muscle (the SNS is getting the body ready to fight or run). This is why people look pale; a majority of the blood has gone away from their skin into the muscles. Since most of the blood is in the muscles, and the SNS almost stops the GI tract, there is very little blood flow to the gastrointestinal tract when your sympathetic nervous system is heightened. Normal blood flow is resumed when you are calmed down.\n\nI hope this helps!
978798
impulse movement without stimulation
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A reflex action is a stereotyped (involuntary) motor response elicited by a defined stimulus. 1 A reflex action is mediated via the reflex arc.\n\nA reflex arc is the neural pathway that mediates a reflex. It generally does not involve the brain. In higher animals it is composed of a spinal "reflex integration center" composed of interneurons to connect affector (sensory stimulation) and effector (response) signals. While the reflex generation may be initiated by nociceptive input, extensive processing takes place within the spinal cord. The neural connection from the primary sensory neurons to the motor neurons is a poly-synaptic pathway (Andersen).\n\nIn lower animals reflex interneurons not necessarily inolve the spinal cord, see e.g., lateral giant neuron of crayfish.\n\nA reflex to a stimulus is almost simultaneous, as the reflex arc doesn't involve the brain at all.\nA reflex action or reflex is a biological control system linking stimulus to response and mediated by a reflex arc. Reflexes can be built-in or learned. It occurs very quickly before thinking. Before the message is sent to the brain the spine picks it up and sends it back to the muscle causing spasm.\n\nSimple reflex\nA simple reflex is entirely automatic and involves no learning.\n\nAn example is the escape reflex (e.g., the sudden withdrawal of a hand in response to a pain stimulus), or the patellar reflex (the jerking of a leg when the kneecap is tapped). Sensory cells (receptors) in the stimulated body part send signals to the spinal cord along a sensory nerve cell. Within the spine a reflex arc switches the signals straight back to the muscles of the body (in this case the arm or the leg) (effectors) via an intermediate nerve cell and then a motor nerve cell; contraction of the leg occurs, and the muscle contracts (the arm or leg jerks upwards). Only three nerve cells are involved, and the brain is only aware of the response after it has taken place. Such reflex arcs are particularly common in animals, and have a high survival value, enabling organisms to take rapid action to avoid potential danger.\n\nConditioned reflex\nA conditioned reflex involves the modification of a reflex action in response to experience (learning). A stimulus that produces a simple reflex response becomes linked with another, possibly unrelated, stimulus. For example, a dog may salivate (a reflex action) when it sees its owner remove a tin-opener from a drawer because it has learned to associate that stimulus with the stimulus of being fed.\n\nReaction time\nFor a reflex, reaction time or latency is the time from the onset of a stimulus until the organism
128410
No.  There are several examples of instinctual behavior...\n1) Sucking (as in thumb, bottle, nipple, etc.)\n2) Crying\n3) Squezing with their hands.
279887
Let me preface this: I'm not a medical professional; I have taken several anatomy classes that give me a basic background. I can't speak for every case, but here's my two cents on the subject. The vagus nerve innervates the heart and provides input into the speed of the heartbeat. It also branches into a few organs in the abdomen, but its primary purpose is to affect heart rate. The heart has its own internal pacemaker which beats around 100 beats/min at rest. The vagus stimulates the heart to actually beat SLOWER than it otherwise would. The better physical fitness, the slower it beats at rest because the heart is more efficient.\n\nIf the vagus were to be blocked, all communication below the blockage would essentially stop (for example when someone has an injury where their spinal cord is severed, doctors can tell exactly where the sever happened based on what functions and what doesn't). I'm not familiar with blockages of nerves, per se. There are ways that nerves can be damaged or severed, resulting in loss of communication above and below the damage. So it would depend largely on the degree of nerve damage/blockage and where exactly it occurs.\n\nTo actually get to your question, I do not know if vagal nerve blockage would cause high blood pressure. High blood pressure is related to a decreased level of elasticity in the blood vessels (primarily the arteries). With every beat of the heart, the arteries expand from the increased pressure. When they are less flexible (from arteriosclerosis or atherosclerosis, for example), blood pressure increases. Blood pressure can also increase with exercise (the heart tries to pump more blood through the body faster). Assuming that the vagus would be damaged above the heart so that it doesn't tell the heart to beat slower, there's a chance it could affect blood pressure: a chronic fast heart rate may affect elasticity of the arteries. The arteries would not have as much time to relax/contract between each beat. It's possible, but I don't know.\n\nAs for vomiting, it may or may not affect it. I don't know which other organs the vagus affects. It is quite possible that at least one of them is related to digestion. Also, the fast heart rate (and probably a feeling of fluttering heart beat) could make you light headed or nauseaus. Whether you actually vomited from it would depend on how that affects you.\n\nSorry I couldn't provide any solid answers, but I hope the background info gives you some help.
292710
no because your intestine is part of your gastrointestinal system which is not connected to your brain.
39045
When your torso (chest, abdomen) receives significant force by a blow (fist, toso hitting the ground after a fall, etc), the reflex reaction is for the muscles of the torso to tense up.  This includes your abdominal muscles, muscles between your ribs (intercostals), neck, etc.  This forces the air out, and your diaphram can not overcome these muscles to inflate the lungs (when your diaphragm contracts, it causes the lungs to fill with air).  So for the second or two that you're torso muscles are in "spasm", you can't take in a breath.  They spasm as a reflex, that mother nature has built in to protect from another forceful blow that could damage your internal organs.
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Due to\n1. Abdominal:transient following over distension of  stomach with food or drink or irritation of the stomach. 2.  Due to causes in the organs inside the chest, 3. Due to causes affecting the brain 4, Toxic causes and 5. Functional like following bouts of laughter, swallowing, or evidence of Hysteria   6.Without any demonstrable cause.
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nerves sometimes 'short-circit' and give you a reaction it soould not. like turning on a light in the living room and the tv fuzzing. how about a eye twitch,same concept.
754955
Interesting question. Possibly related to our ancestors time in the trees. A strong grip would be essential for survival and this involuntary reflex is a relic from that time.
803819
Parasympathetics "point" (erection)\nSympathetics "shoot" (ejaculate)
265953
The sympathetic nervous system, when highly activated, causes stress-induced responses during times of danger.  So anything that aids skeletal muscle efficiency and motion will be stimulated.  So, blood flow will be directed towards skeletal muscle, nervous tissue, and brain, and away from everything else.  In addition to blood flow, all other systems will be inhibited (you dont want the intestines, stomach, kidneys, etc working hard while not getting enough blood flow).  So, the digestive systems and everything else will be inhibited.  If your sympathetic system is very highly stimulated, for an extended period of time, you will often get nauseous enough to vomit-because food will have been sitting in your stomach without being digested.  It may also cause diarrhea or constipation because of lack of digestive activity.\nGood luck in your classes.