Recent questions tagged anatomy

Description : How does the belly button work?

Last Answer : There’s a retaining screw in there that keeps your arse on.

Description : What are the branches of the trigeminal nerve (CNV)?

Last Answer : answer:Nerve supply to the face & scalp Diagram of trigeminal nerve

Description : How many deep cervical fascia are there?

Last Answer : Can you go back to the lecturer and ask him/her?

Description : Anyone here, besides me, considering leaving his or her body to a medical school for their anatomy classes?

Last Answer : I’ll definitely do it. Trust me, the med students appreciate it. I’m going to med school next year and there is actually a shortage of bodies for students to dissect.

Description : Is having thick wrists determined by genetics, hormone levels, or diet?

Last Answer : Thick wrists? Do you mean bone width? That is definitely genetics.

Description : Why is it that when you fold your fingers down, they are all the same length, but when you put them straight up they are all different lengths?

Last Answer : Mine don’t. But can you touch your elbows behind your back?

Description : Soaking the feet before cutting solves the problem, but, what causes the pain while cutting toenails in the first place?

Last Answer : I don’t have pain when cutting my toenails, and I’ve never known anyone say that they do. What kind of pain is it? Your actual nail hurts when cut?

Description : How do castrated men go to the bathroom?

Last Answer : Castrated just means you got no balls. You get to keep the rest of the unit.

Description : How to tell right or left bones of appendicular skeleton?

Last Answer : Ever hear of anatomical position? If you visualize the bones in that position, you can’t go wrong. The Radial bone is also on your thumb side.

Description : Why are men''s testicles located between their legs?

Last Answer : Because that is where our genitals are. I suppose male genitals could be moved to the brain!

Description : Is there an organ in the human body that fascinates you more than all others?

Last Answer : answer:The brain and synaptic processing. A part modified: knees, they should be sturdier. Nothing is easier than screwing up your knees. Running, martial arts or what not.

Description : What is this bump on my tongue and how do I get rid of it?

Last Answer : My Mother calls them lie bumps ;) But probably just from eating too much salt. I get little sores on my tongue if I’ve had a lot of salt. So strange!

Description : My daughter wants to know, how do doctors know whether a baby with Sirenomelia (Mermaid Syndrome) is a boy or a girl?

Last Answer : My guess is that they could check the fetus’ innards with xray.

Description : Do beat boxers have some certain special physical lungs and tongue abilities? (Same question goes for yodeling)

Last Answer : I'd say practice. I'm not great at it, but I've picked up the ability to hold a beat. The key with beatboxing is the way it all runs together. If you slowed the routines right down you'd find ... harshly and kind of clicking the back of your throat as you do it. Yodelers, I do not kno-eee-oooooooow.

Description : Does everybody experience "pee shivers" or is it mostly men?

Last Answer : A data point. I am a male and have never experienced this.

Description : What the hell is that?

Last Answer : Uvula?

Description : In the human body, why is there redundancy with some organs, but not others?

Last Answer : Well, ignoring the complexity it would take to have two hearts working in unison and not mess up the flow of blood….. quite frankly, we don’t know why not. It’s just the way we evolved.

Description : What are the consequences of supergluing a person's anus closed?

Last Answer : I would like to know how this question came up…. But I would assume it would make certain activites tough, you might die if your bladder burst… And there would probally be some tearing/other damaging of the skin around it causeing premenate damage the area when you had it unglued

Description : Which of the following anatomical considerations is correct: A. optic chiasm lesions characteristically produce a bitemporal hemianopia B. central scotoma occurs early in papilloedema C. in ... hemianopia E. opticokinetic nystagmus is found with bilateral infarction of the parieto-occipital lobes

Last Answer : Ans: A

Description : A 48-year-old female patient develops an acute, severe and isolated right C6 radiculopathy affecting both the motor and sensory roots. She is examined in an EMG clinic 3 weeks after the onset of ... to be depressed or absent. E. Voluntary motor unit activity may be absent in the right biceps.

Last Answer : Ans: A

Description : Which of the following would be expected following distal occlusion of the posterior cerebral artery? A. cerebellar ataxia B. contralateral hemiplegia C. dysarthria D. homonymous hemianopia E. palatal palsy

Last Answer : Ans: D

Description : Which of the following anatomical considerations is correct: A. optic chiasm lesions characteristically produce a bitemporal hemianopia B. central scotoma occurs early in papilloedema C. in ... hemianopia E. opticokinetic nystagmus is found with bilateral infarction of the parieto-occipital lobes

Last Answer : Ans: A

Description : An 80-year-old woman has a three month history of progressive numbness and unsteadiness of her gait. On examination, there is a mild spastic paraparesis, with brisk knee reflexes, ankle ... dorsal meningioma C. multiple sclerosis D. subacute combined degeneration of the cord E. tabes dorsalis

Last Answer : Ans: B

Description : Which ONE of the following would be expected in a third nerve palsy? A. Enophthalmos B. Constricted pupil C. Convergent strabismus D. Increased lacrimation E. Unreactive pupil to light

Last Answer : Ans: E

Description : Which of the following regarding the anatomy of the heart is true? A. The aortic valve is tricuspid. B. The ascending aorta is entirely outside the pericardial sac. C. The left atrial appendage is ... trunk lies anterior to the ascending aorta. E. The right atrium is posterior to the left atrium.

Last Answer : Ans: A

Description : A 73-year-old man presents with an abrupt onset of double vision and left leg weakness. Examination shows weakness of abduction of the right eye, right-sided facial weakness affecting upper and lower ... frontal lobe B. left lateral medulla C. right corpus striatum D. right midbrain E. right pons

Last Answer : Ans: E

Description : Which of the following would be the result of a spinal lesion at the level of C8? A. a reduced brachioradialis reflex B. inability to abduct the shoulder C. loss of sensation over the lateral aspect of the arm D. winging of the scapula E. weakness of finger flexion

Last Answer : Ans: E

Description : Which of the following statements are true of coronary artery anatomy? A. Right bundle branch block in acute anterior myocardial infarction suggests obstruction prior to the first septal branch of the left ... the left anterior descending coronary artery. E. The left main stem is about 4 cm long

Last Answer : Ans: A

Description : What are the stages of sleep? 

Last Answer : Data collected from EEGs (electroencephalograms) of brain activity during sleep have shown at least four separate stages of sleep. During stage 1, heart and breathing rates decrease slightly, the eyes roll slowly ... stage 3 sleep, followed by stages 2 and then 1, before the cycle begins again. 

Description : How is IQ calculated? 

Last Answer : IQ, or the intelligence quotient, was originally computed as the ratio of a person's mental age to his chronological age, multiplied by 100. Following this method, a child of 10 years old who ... IQ of 70 or below indicates mental retardation, and an IQ of 130 or above indicates gifted abilities.

Description : How does the endocrine system differ from the nervous system?

Last Answer : Both the endocrine and nervous are regulatory systems that permit communication between cells, tissues, and organs. A major difference between the endocrine system and nervous system is the ... endocrine system are longer lasting. Examples of endocrine control are growth and reproductive ability.

Description : What are the effects of Ageing on respiratory system? 

Last Answer : There is a decline in the efficiency of the respiratory system with ageing. There is a gradual loss of elastic tissue & the chest wall becomes less capable of expansion. These changes show up ... white blood cells. This leaves the system more prone to disease like pneumonia, bronchitis & emphysema. 

Description : Which types of tissue have the greatest capacity to regenerate?

Last Answer : Epithelial and connective tissues have the greatest capacity to regenerate. In small wounds and injuries, the epithelial and connective tissues often heal with normal tissue. The ability of muscle tissue to ... at a very slow pace, most brain and spinal cord injuries result in permanent damage.  

Description : Is all the cartilage in the body the same? 

Last Answer : There are three types of cartilage in the human body: 1) hyaline cartilage; 2) elastic cartilage; and 3)fibrocartilage. Hyaline cartilage (from the Greek hyalos, meaning glass ) is the most ... , since there are no blood vessels in cartilage, the healing process is slower than for other tissues

Description : Does your heart stop beating when you sneeze? 

Last Answer : The heart does not stop beating when you sneeze. Sneezing, however, does affect the cardiovascular system. It causes a change in pressure inside the chest. This change in pressure affects the blood ... a harmless delay between one heartbeat and the next, often misinterpreted as a skipped beat.

Description : Why do we die without oxygen? 

Last Answer : Most living organisms are aerobic; that is, they require oxygen to complete the total breakdown of glucose for the production of adenosine triphosphate (ATP), the energy for life. Many people ... recycle the spent electrons and hydrogen ions (H+) produced as byproducts of aerobic respiration. 

Description : Distinguish among the terms stimulus, sensation, and perception

Last Answer : A stimulus is an energy source (chemical, pressure, light wave, etc.) that activates a receptor cell (specialized nerve cell) to transmit a nerve impulse, or sensation. If the sensation arrives in ... to the brain. Once these sensations reach the cerebral cortex, a person perceives (feels) pain. 

Description : Why is it dangerous to talk while eating? 

Last Answer : If a person talks while eating, food may be inhaled into the lungs. Normally, after food is swallowed, it passes into the pharynx and then into the esophagus. Food is prevented from entering the ... is usually initiated, although food may lodge in the larynx, causing a blockage of the airway. 

Description : Why is a woman’s voice usually higher than a man’s voice?

Last Answer : The pitch of the voice-how high or low it sounds-depends on the length, tension, and thickness of the vocal cords. Because males have longer vocal cords of up to 1 inch (2.54 ... Testosterone is the hormone that is responsible for the increase of length of male vocal cords during puberty. 

Description : Why is there a “popping” sound when you crack your knuckles, and is it dangerous to crack them?

Last Answer : A number of reasons have been given for the characteristic popping sound associated with someone cracking their knuckles. One reason is that when a joint is contracted, small ligaments or ... the knuckle bones. However, most researchers believe knuckle cracking does not cause serious joint damage.

Description : Which structures of the body have more bones for their size than any other part of the body?

Last Answer : The wrist and the hand have more bones in them for their size than any other part of the body. There are 8 carpals in the wrist between the forearm and the palm of the hand; 5 ... wrist and hand with the many movable joints between them makes the human hand highly maneuverable and mobile. 

Description : How do bones grow? 

Last Answer : Bones form and develop through a process called ossification. There are two types of ossification: intramembranous ossification and endochondral ossification. Intramembranous ossification is the formation of ... through endochondral ossification are the long bones, such as the femur and humerus.

Description : What is rigor mortis? 

Last Answer : Dead bodies are at first limp. Several hours after death, the skeletal muscles undergo a partial contraction that fixes the joints. This condition, known as rigor mortis, may continue for 72 ... the muscle fibers to remain linked, stiffening the whole body until the muscles begin to decompose. 

Description : Are there differences between the male and female skeletons?

Last Answer : Several general differences exist between the male and female skeletons. The male skeleton is generally larger and heavier than the female skeleton. The bones of the skull are generally more graceful ... is much sharper in males, resulting in a more circular, narrower, almost heart-shaped pelvis 

Description : Which types of tissue have the greatest capacity to regenerate?

Last Answer : Epithelial and connective tissues have the greatest capacity to regenerate. In small wounds and injuries, the epithelial and connective tissues often heal with normal tissue. The ability of muscle tissue to ... at a very slow pace, most brain and spinal cord injuries result in permanent damage. 

Description : Is all the cartilage in the body the same? 

Last Answer : There are three types of cartilage in the human body: 1) hyaline cartilage; 2) elastic cartilage; and 3) fibrocartilage. Hyaline cartilage (from the Greek hyalos, meaning glass ) is the most ... , since there are no blood vessels in cartilage, the healing process is slower than for other tissues 

Description : How is the skin involved in the regulation of body temperature?

Last Answer : The skin is one of several organ systems participating in maintaining a core temperature, meaning the temperature near the center of someone's body. Temperature sensors in the skin and internal organs monitor ... sweat evaporates off the skin surface it carries a large amount of body heat with it. 

Description : Are body planes important for identifying anatomical structure? 

Last Answer : In order to observe and study the structural arrangement of the internal organs, the body may be divided and sectioned (or cut) along three fundamental planes. These planes are the midsagittal (median) ... and lower (inferior) sections. It is at right angles to the sagittal and frontal planes. 

Description : What is cerumen? 

Last Answer : Cerumen is an oily, fatty substance produced by the ceruminous glands in the outer portion of the ear canal. This compound is commonly referred to as ear wax and, together with hairs in the ... cleaning the ear. In such cases, the impacted ear wax should be removed by a healthcare professional.

Description : What is the auditory tube and its function? 

Last Answer : The auditory tube (Eustachian tube) connects each middle ear to the throat. This tube conducts air between the tympanic cavity and the outside of the body by way of the throat and mouth. It also helps ... A reverse movement of air occurs when a person moves from a low altitude to a higher one.