Touch receptors called Meissner’s corpuscles are found in the papillary region of the dermis of the skin. When nothing is touching the skin‚ a voltage difference known as the (1) ___________ _____________ _____________ exists across the plasma membrane. Leakage channels‚ also called passive channels‚ allow the movement of potassium (and sodium) across the membrane. Due to the electrochemical gradient‚ (2) ___________________ (ion) diffuses out of the cell. Because of this and because proteins that
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Date______________ Period____ Tissues Lab Directions: This lab is broken down into three sections: Epithelial Tissue‚ Connective Tissue‚ and Muscle & Nerve Tissue. For each section‚ read the background and answer any questions before you come to class‚ then in class sketch the specimens listed under each sketch circle. For your sketches‚ include the total magnification under which you viewed the specimen and be very detailed in your sketch. Epithelial Tissue Background Functions of Epithelium
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PLANT TISSUES (pp 261-268) HOW ARE CELLS ORGANIZED IN PLANTS? I. MERISTEMATIC TISSUES A. APICAL MERISTEMS Primary Growth 1. Initials a. Occur near tips of roots and shoots b. Cells have thin walls‚ prominent nuclei‚ and small vacuoles c. Functions 1) Establish patterns of growth. • Leaf pattern. 2) Produce new‚ genetically healthy cells 3) Produce derivatives which in turn account for primary growth i.e. elongation. 2. Derivatives a. Protoderm - becomes
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Heredity and Hormones The Influences of heredity and hormones on human behavior The Influence of Heredity and Hormones on Human Behavior Human behavior has always been fascinating to many people. Scientists have long studied the factors that cause and contribute too many different types of human behaviors. The Effects Heredity Has On Human Behavior Many different traits are passed along to people through genetics. Some of these traits include the basics such as eye color‚ height‚ and
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The Horrible Hormones I live on a small farm at the top of a mountain. At the bottom of the long gravel driveway is a two story tan house with a red door and shutters. Behind the house is the barn. The barn is a baby blue‚ two stall barn where the horses stay and where we store hay for our animals. There are two fairly large pastures connected to the barn that the animals can graze on. If you walk past the barn to the wood line you will find a small hutch with a handful of pigs. Just past the pigs
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PITUITARY HORMONES Prof. Francis R. Capule Department of Pharmacy U.P. College of Pharmacy Hypothalamic-Pituitary Endocrine System ANTERIOR PITUITARY HORMONE Pharmacological Applications • replacement therapy for deficiency states • antagonists for diseases that result from excess production of pituitary hormones • diagnostic tools for identifying several endocrine abnormalities HORMONE Thyrotropin-releasing hormone (TRH) Corticotropin-releasing hormone (CRH) Growth hormone-releasing
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endocrine system secretes hormones through the blood this takes a varying amount of time to take effect. Hormones carry messages. Certain hormones can affect aspects of the human body at different times. One such time is during puberty. This is the time in an individual’s life that the body changes. Hormones activate behaviors such as aggressiveness and sleepiness (Morris‚Maisto‚ 2005). Mood‚ emotional reactivity‚ learning‚ and resistance to diseases are also attributed to hormones. The thyroid gland
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Question: Describe five different organelles and their functions. Explain the similarity and differences between eukaryotic cells and prokaryotic. All eukaryotic cells‚ whether from animals‚ plants‚ protists‚ and fungi‚ are fundamentally similar to one another but different from prokaryotic cell. A eukaryotic cell contains various other organelles‚ which perform specific functions in the cell. These organelles can be organized into few basic functional groups such as genetic control‚ distribution
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Hormones and Behaviors Sarah Wegner BEH/225 December 12‚ 2014 Nancy Ault Hormones and Behaviors The endocrine system plays a big part in the production and distribution of hormones into the body. These hormones can affect an individual’s behavior greatly. Hormones such as estrogen affect a woman’s moods and emotions; steroid hormones cross the bloodstream directly to the brain and affect the neurons directly. This action can cause changes in behavior for both men and women. The endocrine system acts
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passed down from generation to generation. I will compare and contrast the hereditary and hormones that affect human behaviors. I will identify the hormones and glands as well as describe the endocrine system. Heredity‚ and hormones‚ can affect behavior. Human behavior starts as thought processes in the brain. The different roles are that hormones can change our behaviors if they become imbalanced. Hormones are secreted by glands‚ which are controlled by a part of the brain called the hypothalamus
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