Test 01 - Introduction Receptor cells use chemical transmitters to communicate with relay cells or afferent nerve fibers. In all sensory systems‚ accessory structures modify‚ in some way‚ the stimulus going to the receptor surface. Receptors are electrically polarized cells and therefore have a resting membrane potential. Stimuli produce‚ in the appropriate receptors‚ a change in the electrical properties that is known as the receptor or generator potential. The two ways in which sensory stimuli
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synathrotic‚ amphiarthrotic‚ or diathrotic represents – the degree of movement possible at the joint 13. In which of the following is rotational movement possible – ball-and-socket joint 14. A sprain involves – overstretched or torn ligaments and tendons in a joint 15. Movements permitted by the elbow joint between the humerus and the ulna are – flexion and extension 16. Joints – bind bones‚ enable body parts to move‚ allow bones to grow‚ and often contain cartilage (all of the above)
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Different physical situations like eye-strains and tendonitis can also begin to occur. With hand held devices‚ different tendons can become overworked and become inflamed. This can start mild‚ however‚ more and more use of these tendons can result in a very serious issue. Not only are children’s hands at risk‚ but so are their eyes. Eye-strains can be very common. Staring at screens is not good for anyone’s eyes. Not only do kids
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to care about the serious consequences a human being may suffer from consuming steroids. Some of the most serious effects of this illicit substance are high blood pressure‚ heart disease‚ liver damage‚ cancer and an increase risk of ligament and tendon injuries. Throughout the course of the 2002 season many injuries have been reported and a significant amount of players have been placed on the disabled list. [pic] (Figure 1) An important change has occurred from 1997 through the end
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Plastics (polymers) – biocompatible‚ not-toxic‚ non-corrosive‚ smooth‚ flexible‚ and low-density. 3. Muscles – Muscles look like bundles of pale pink tissue which pull the bone. Tendons - Tendons are shiny white tissues at the ends of the muscles that attach muscles to bones. Ligaments - Ligaments connect bones to other bones at joints. They look like a shiny white covering of the joint surfaces. Cartilage - Between the bones is another
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Definition - Muscular dystrophy is a genetic mutation where the muscle fibres become susceptible to damages causing the muscle to progressively get weaker. Eventually muscular dystrophy will cause the inheritance of this disease to need a wheelchair. Muscular dystrophy is most commonly found in boy and in their early childhood years‚ other types of muscular dystrophy don’t surface until adulthood. Duchenne muscular dystrophy symptoms include; Frequent falls‚ difficulty getting up from a lying
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DOI: 9/24/2004. The patient is a 73-year-old female housekeeper who sustained a work-related injury to her right shoulder when the door of the glass shower she was washing struck her. Based on the progress report dated 03/02/16‚ the patient presents for ongoing evaluation of her right shoulder pain. She states that she has been going to acupuncture and has had 4 sessions. It is helping significantly decrease her pain‚ relax her muscles‚ and she is able to avoid needing pain medications. Unfortunately
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it is not covered by articular cartilage‚ is a sheath of dense irregular connective tissue containing osteoblasts‚ functions to protect the bone‚ assists in fracture repair‚ nourishes bone tissue‚ and serve as an attachment point for ligaments and tendons 4.)Which kind of bone marrow is found in spongy bone tissue? hemopoietic (red) bone marrow 5.)Which ossification method would form a femur? The femur is formed through the endochondral ossification process. This is where bone replaces the
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reflex. If a person’s left pupil is dilated more than his right pupil‚ he may have Anisocoria‚ a harmless condition characterized by unequally sized pupils affecting about 20% of the population. Having the subject close their eyes during the patellar tendon reflex amplified the response to the mallet strike by causing distraction so that the person was unable to voluntarily suppress the reflex. Although reflexes do not require the activation of higher brain centers‚ they can be voluntarily inhibited
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cells. The other major tissue is the connective tissue‚ which is more diverse and abundant‚ compared to the other tissues. The function of the connective tissue is to protect‚ support‚ and bind organs. An example of connective tissue could be the tendons and ligaments. There are three main components of the connective tissue‚ fibers‚ ground substance and cells. The ground
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