Human Sensory Systems Objectives · Describe how sensory receptors communicate to the central nervous system. · Describe receptors that detect temperature‚ pain‚ touch and pressure‚ muscle length and tension‚ and blood pressure. · Describe the nature of vision in terms of its stimulus on the function of rod and cone cells. Introduction The function of the brain is to convey messages to different parts of the body. Messages are conveyed from a nerve cell to another nerve cell‚ muscle cell
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Eliciting (Generating) a Nerve Impulse 1. Why don’t the terms depolarization and action potential mean the same thing? Depolarization has to do with surfaces becoming more negative or positive and reaches a certain point called a threshold. When the threshold is reached‚ an action potential is initiated. 2. What was the threshold voltage in Activity 1? The threshold voltage in Activity 1 was 3.0. 3. What was the effect of increasing the voltage? How does this change correlate to changes
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Respiratory system Asthma A chronic (long term) lung disease that inflames and narrows the airways‚ asthma causes recurring periods of wheezing ( a sound when you breathe)‚ chest tightness‚ shortness of breath‚ and coughing. The coughing often occurs at night or early in the morning. Asthma is characterized by inflammation of the bronchial tubes with increased production of sticky secretions inside the tubes. People with asthma experience symptoms when that airways tighten‚ inflame or fill with mucus
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stress and anxiety. Give a detailed explanation of how the nervous system functions in increasing the heart rate of an individual. You should include diagrammatic representations to help with understanding the details. Sensory system is systems that comprise of nerves and cells that convey data to the cerebrum and from the mind to different parts of the body. Cells that make up the sensory system are called neurons. The sensory system is the thing that controls our correspondence its activity
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R E V I E W NAME ____________________________________ LAB TIME/DATE _______________________ S H E E T EXERCISE 21 Print Form Spinal Cord‚ Spinal Nerves‚ and the Autonomic Nervous System Anatomy of the Spinal Cord 1. Match each anatomical term in the key to the descriptions given below. Key: a. D C B A cauda equina 1. 2. 3. 4. b. conus medullaris c. filum terminale d. foramen magnum most superior boundary of the spinal cord meningeal extension beyond the spinal cord terminus spinal
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Homeostasis is defined as the adjustments a body makes to maintain an environment conducive to life. All of the organ systems in the human body must maintain a steady internal environment for the body to function properly. The factors that need to be controlled are water and salt content‚ PH balance‚ oxygen‚ sugar‚ protein‚ body temperature‚ and blood and glucose concentration. The basic principle of homeostasis is when there is an abnormal internal condition‚ it will be detected and a variation
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The integumentary system involves skin‚ nails‚ nerves‚ hair‚ and glands. The main act of the integumentary system is to protect the body from the atmosphere. It works to protect from illnesses‚ body temperature and body moisture. In sequence for this to happen‚ the integumentary system works together with all different systems in our body. Functions of integumentary system protects‚ secrets‚ maintains body temperature‚ absorbs‚ and receives
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composed of complicated and intricate systems that work together to keep us alive and able to move and process the things we find to be simple such as breathing or blinking. There are 11 systems in our body‚ each in charge of something different and supplying support to the other. Those 11 systems are the‚ nervous‚ skeletal‚ muscular‚ circulatory‚ respiratory‚ digestive‚ endocrine‚ reproductive‚ excretory‚ integumentary and immune systems. I will address every system in the human body as well as provide
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TMA 2 Part 1 Describe how neurons in the central nervous system communicate. Using examples‚ discuss how this has helped us to understand human behaviour. Human cognition‚ emotion‚ motivation and ultimately life is made possible by neurons in the central nervous system (CNS). This essay will briefly describe the processes involved in neuronal communication and discuss how this knowledge has helped improve our understanding of human behaviour‚ specifically with regards to neurological
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Reproductive System What is it? The reproductive system is a collection of organs that work together for the purpose of producing a new life The major organs of the reproductive system include the external genitalia and internal organs‚ including gonads that produce gamete‚ which is a cell that fuses with another cell during conception in organisms that reproduce sexually. Substances such as fluids‚ hormones‚ and pheromones are also important to the effective functioning of the reproductive system What
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