Organ Systems and their functions I. Integumentary System Functions to protects against environmental hazards; helps control body temperature. Composed of Skin and derivates Epidermis – covers surface; protects deeper tissues Keratinocytes – waterproofing Melanocytes – pigment –protects against UV light Dermis – Nourishes epidermis; provides strength; contains exocrine glands Collagenous tissue – strength Skin Derivates A. Hair– protection and warmth (vellus – fine un-pigmented hair: terminal
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cardiovascular system. Your heart works as a pump that pushes blood to the organs‚ tissue‚ and cells of your body. Coronary artery Heart attack Abnormal heart rhythms Heart failure Congenital heart disease Required: Endocrine System Pituitary gland Thyroid gland Parathyroid glands The endocrine system is made up of glands that produce and secrete hormones‚ chemical substances produced in the body that regulate the activity of cells or organs. Diabetes Hypothyroidism Hyperglycemia Thyroid cancer Osteoporosis
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Case Study 1 1. The Neuromuscular junction uses synapses to connect the muscular system with the muscular system. A nerve impulse is sent from the brain down to the motor neuron by way of the axon. Acetylcholine is released after the vesicles break open. Sodium channels are opened from Acetylcholine that bonds to the Acetylcholine receptors. Depolarization happens when Acetylcholine causes an area of the muscle fiber to become a little more positive when it leaves the nerve and docks on receptors
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Chapter 2 Brain and Behavior The cerebral cortex outer layer of the cerebrum has the two largest hemispheres that covers the upper part of the brain which are divided into smaller portion called lobes. Corticalization is an increase in size of the wrinkling of the cortex and without this we would not be any smarter than any other animal. Cerebral hemispheres are divided into right and left halves of the cortex connected by thick band axon fibers called corpus. Hemispheric specialization‚ testing
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the change in arterial pressure pulse. MAP=∫▒〖P dt/∆t〗 (1) MAP= P_dias+1⁄3 (P_sys-P_dias ) (2) There are six natural mechanisms for controlling blood pressure: (1) cardiac input and output equilibration‚ (2) blood volume maintenance‚ (3) endocrine control‚ (4) peripheral resistance (systemic vascular resistance) maintenance‚ (5) baroreceptor reflex‚ and (6) the renin-angiotensin system (Foxall‚ 2009). All six mechanisms work independently of one another but also can have positive or negative
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Furthermore‚ evidence has revealed that system dysregulation like metabolic dysregulation‚ hemato-coagulation‚ endocrine‚ and inflammation pathways‚ are significant factors which associated with frailty in elderly1‚7‚23‚30‚34‚39. The chronic inflammation (serum levels of C-reactive protein: CRP‚ and interleukin 6: IL-6) is a key related to aged-declination‚ such as
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After reading the article “Pandora’s Water Bottle‚” I found out that endocrine disrupting chemicals had played a significant role that altered the normal functioning of both wildlife and humans. Therefore‚ when we exposed to these chemicals in the environment‚ we would experience some symptoms‚ such as sleep disorders‚ reproduction problems‚ depression‚ or developmental problems. All in all‚ do you think it relates to products that we use to clean our home? Definitely yes. The more we exposed to
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Public Awareness of Diabetes Lynn A. Bailey HCA/240 August 21‚ 2011 Dr. Monica Reed‚ PhD‚ MPH Diabetes is a disease that affects millions of people every year‚ and in most cases‚ this is a disease that is preventable. Increasing public awareness regarding risk factors and how this debilitating disease can be controlled and prevented may reduce the number of cases diagnosed each year. Throughout the years‚ scientists have developed a variety of treatment options and medications that are
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to their radiation. This radiation is similar to the harmful radiation of microwave. No one wants to stick their heads into a microwave‚ but they always bring their phones too close to their ears. This radiation affects their brains‚ hearts and endocrine system. For brains‚ it makes sleep difficult. As a result‚ they do not have enough energy to work and study. Some people have brain cancer because of long-term exposure to
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is distinct from one another‚ not only in our physical aspects but especially so in our behaviors and attitudes. ‘Behavior’ is an inherent trait of an organism‚ including man‚ towards its environment and other organisms. It is controlled by our endocrine and nervous systems and the complexity of our behavioral patterns are set by the complexity of our nervous system. Our behaviors are either innate or acquired and learned from our environment. It is our response to the different stimuli and other
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