The deflection from a straight path undergone by a light ray or a wave of energy in passing obliquely from one medium (as air) into another (as water or glass) in which its velocity is different. In a neuron, an insulating coat of cell membrane from Schwann cells that is interrupted by nodes of Ranvier. The opaque muscular contractile diaphragm that is suspended in the aqueous humor in front of the lens of the eye, is perforated by the pupil and is continuous peripherally with the ciliary body, has a deeply pigmented posterior surface which excludes the entrance of light except through the pupil and a colored anterior surface which determines the color of the eyes. A movement at a synovial joint in which the distal end of the bone moves in a circle while the proximal end remains relatively stable, Bending the foot in the direction of the dorsum (upper surface, An unbending movement around a joint in a limb (as the knee or elbow) that increases the angle between the bones of the limb at the joint, A bending movement around a joint in a limb (as the knee or elbow) that decreases the angle between the bones of the limb at the joint, An instrument for measuring angles (as of a joint or the skull), Joint between bones (as at the elbow or knee) that permits motion in only one plane, Translucent bluish white cartilage consisting of cells embedded in an apparently homogeneous matrix, present in joints and respiratory passages, and forming most of the fetal skeleton, The point of contact between elements of an animal skeleton whether movable or rigidly fixed together with the surrounding and supporting parts (as membranes, tendons, or ligaments), Dense regular connective tissue that attaches bone to bone, Bending the foot in the direction of the plantar surface (sole), The range through which a joint can be moved, Moving a bone around its own axis, with no other movement. A gland (as the thyroid or the pituitary) that produces an endocrine secretion -- called also ductless gland, gland of internal secretion. a year ago. Lateral. To play this quiz, please finish editing it. , This ionic component is necessary to move tropomyosin to expose the active sites on the actin filament. Match. Solo Practice. A muscular tube that in adult humans is about nine inches (23 centimeters) long and passes from the pharynx down the neck between the trachea and the spinal column and behind the left bronchus where it pierces the diaphragm slightly to the left of the middle line and joins the cardiac end of the stomach. The pouch where urine is stored prior to elimination. Please enter your name. A condition in which visual images come to a focus behind the retina of the eye and vision is better for distant than for near objects -- called also farsightedness. Biology. The explanation for the Stanine scores is shown below. A gland (as a sweat gland, a salivary gland, or a kidney) that releases a secretion external to or at the surface of an organ by means of a canal or duct. Learn. Save. A division of a body organ (as the brain, lungs, or liver) marked off by a fissure on the surface. Deep. Play. Posterior. Match. Edit. … (optional) First name: Last name . Powered by Create your own unique website with customizable templates. A usually translucent somewhat elastic tissue that composes most of the skeleton of vertebrate embryos and except for a small number of structures (as some joints, respiratory passages, and the external ear) is replaced by bone during ossification in the higher vertebrates. Biology. Study hard and do not compare to PBS. Share practice link. Edit. Live Game Live. You can€go to any question by selecting it from the list that appears on the screen. Pair of breathing tubes that branch from the trachea into the lungs. Flashcard maker : Joan Grant. A protein that is similar to collagen and is the chief constituent of elastic fibers. Anterior. The part of the intestine that lies between the stomach and colon, consists of duodenum, jejunum, and ileum, secretes digestive enzymes, and is the chief site of the absorption of digested nutrients. The stomach and intestine as a functional unit. STUDY. The movement of blood through the vessels of the body that is induced by the pumping action of the heart and serves to distribute nutrients and oxygen to and remove waste products from all parts of the body. The Calorie (with a capital C), usually used to indicate the energy content of food, is a kilocalorie. A convoluted ridge between anatomical grooves. A sheet of muscle that forms the bottom wall of the thoracic cavity in mammals; active in ventilating the lungs. The hydrostatic force that blood exerts against the wall of a vessel. Edit. The rate at which heat is given off by an organism at complete rest, A measure of body fat that is the ratio of the weight of the body in kilograms to the square of its height in meters, Chemical reactions that break down complex organic compounds into simple ones, with the net release of energy, The bodily system concerned with the ingestion, digestion, and absorption of food. Alternate forms of a single gene that control the same inherited trait (such as type A blood) and are located at the same position on homologous chromosomes. This activity was created by a Quia Web subscriber. What is Skin? An area in the vertebrate throat where air and food passages cross. The large arterial trunk that carries blood from the heart to be distributed by branch arteries through the body. anterior. A condition in which the visual images come to a focus in front of the retina of the eye because of defects in the refractive media of the eye or of abnormal length of the eyeball resulting especially in defective vision of distant objects -- called also nearsightedness. The secretions of salivary glands contain substances to lubricate food, adhere together chewed pieces into a bolus, and begin the process of chemical digestion. An endocrine gland at the base of the hypothalamus; consists of a posterior lobe, which stores and releases two hormones produced by the hypothalamus, and an anterior lobe, which produces and secretes many hormones that regulate diverse body functions. Secretion of synovial membranes that lubricates joints and nourishes articular cartilage, A fully moveable joint in which the synovial (joint) cavity is present between the two articulating bones, A white fibrous cord of dense regular connective tissue that attaches muscle to bone, A contractile protein that is part of the thin filaments in muscle fibers, Nerve cells that carry impulses towards the central nervous system, Striated muscle fibers (cells) that form the wall of the heart; stimulated by the intrinsic conduction system and autonomic motor neurons, A condition caused by compression of the median nerve in the carpal tunnel and characterized especially by weakness, pain, and disturbances of sensation in the hand and fingers, Nerve cells that conduct impulses away from the central nervous system, The delicate connective tissue surrounding the individual muscular fibers within the smallest bundles, The external connective-tissue sheath of a muscle, A small bundle or cluster, especially of nerve or muscle fibers, The attachment of a muscle tendon to a moveable bone or the end opposite the origin, An organ composed of one of the three types of muscular tissue (skeletal, cardiac, and smooth), specialized for contraction to produce voluntary and involuntary movements of parts of the body, A threadlike structure, extending longitudinally through a muscle fiber (cell) consisting mainly of think filaments (myosin) and thin filaments (actin, troponin, and tropomyosin), The contractile protein that makes up the thick filaments of muscle fibers, A cordlike bundle of neuronal axons and/or dendrites and associated connective tissue coursing together outside the central nervous system, The attachment of a muscle tendon to a stationary bone or the end opposite the insertion, The connective-tissue sheath that surrounds a muscle and forms sheaths for the bundles of muscle fibers, Network of interlacing blood vessels or nerves, Temporary rigidity of muscles occurring after death, Any of the repeating structural units of striated muscle fibrils, An organ specialized for contraction, composed of striated muscle fibers (cells), supported by connective tissue, attached to bone by a tendon or aponeurosis, and stimulated by somatic motor neurons, The explanation of how thick and thin filaments slide relative to one another during striated muscle contraction to decrease sarcomere length, A tissue specialized for contraction, composed of smooth muscle fibers (cells), located in the walls of hollow internal organs, and innervated by the autonomic motor neurons, Any of the alternate dark and light cross bands of a myofibril of striated muscle, A protein of muscle that forms a complex with troponin regulating the interaction of actin and myosin in muscular contraction, A protein of muscle that together with tropomyosin forms a regulatory protein complex controlling the interaction of actin and myosin and that when combined with calcium ions permits muscular contraction.
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