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explain the cardiac cycle of human bodythe different stages of a heart pumping cycle are referred to as follows contraction of the ventricles is
what is the role of heart in human bodythe heart is the main pump that circulates the blood and fluid within the body the heart beats at 72 times per
what is the meaning of cardiovascular system the cardiovascular system takes care of the distribution of gases nutrients hormones immune elements and
explain antigens a blood type or group is based upon the presence or absence of certain substances called antigens on the surface of the red blood
what is compositionblood consists of red blood cells white blood cells and platelets suspended in a straw-colored liquid called plasma if whole blood
explain the primary function of bloodthe primary function of the blood to transport oxygen from the lungs to body tissues for interior respiration
what is glandsthe central nervous system controls much of the endocrine system through the hypothalamus the hypothalamus directs many of the bodys
what is hormones explain its role in humun bodyhormones are chemical signals that trigger responses in another part of the body once secreted
what is endocrine system explain the endocrine system consists of glands organs that secrete hormones endocrine glands are tissues that produce
explain the senses taste and smell the pigmented cone cells of the retina transmit information to bipolar nerve cells then to ganglion cells and on
what is the senses explain their vision vision the human eye consists of structures which evolved together to focus light on a sensitive area
explain the working of senses touch hearing equilibrium the senses are detected by sense organs collections of receptor cells or cells closely
explain the peripheral nervous system in detailthe peripheral nervous system is divided into the somatic nervous system and the autonomic nervous
explain the functionality of central nervous system the central nervous system is the center of the nervous system receiving impulses from and
what is nerve impulses in human biologya nerve impulse is an electrical signal carried by a nerve cell unlike electrical transmission in wires this
explain the nerve cell structure and functionbefore studying the organization of the nervous system we will look at the relationship between
explain cardiac muscle or heart musclecardiac muscle or heart muscle is a striated muscle that occurs only in the vertebrate heart the heartbeat is
what is smooth musclesmooth muscle provides the contractile force for movement in internal organs under control of the involuntary or autonomic
write a short note on muscular systemthe muscular system provides mobility and support to the body there are three types of muscle tissue skeletal
what is joints joints are locations where two or more bones come together or articulate bones are joined with varying degrees of rigidity joints may
what is cartilage explain brieflysome bones such as the bones in the skull develop directly from membranous connective tissue but in human fetal
explain the role of bones in human biologybone is covered by a tough outer membrane called the periosteum the periosteum contains systems of
explain the skeletal systemskeletal system the support framework or skeleton in the human body is composed of mostly hard mineral substances unlike
explain the integumentary system in human biologythe skin its glands and outgrowths form the integumentary system this system provides protection
organ systems organisms are composed of organ systems each organ system is made up of several different organs for example the digestive system