Biology UNIT 5 3.0 / 5 based on 2 ratings ? BiologyHuman, animal and plant physiologyA2/A-levelEdexcel Created by: Olympia18Created on: 23-03-15 09:11 what attaches Muscle to Bone Tendons 1 of 23 What do Ligaments do? Joins bones to bones, gives stability to joints, 2 of 23 what do nerves do? Stimulate and coordinate muscle contraction. 3 of 23 What are ligaments? Tough elastic tissue that surrouds the joint for support and limits movement. 4 of 23 what does antagonistic muscle pairs mean? Muscles that work in pairs with actions opposing each other 5 of 23 the muscle that bends the joint is called the..? FLEXOR muscle 6 of 23 The muscle that straightens the joint is the..? EXTENSOR muscle. 7 of 23 what is a cruciate ligament? 2 ligaments that cross behind the knee cap, holds bones together. 8 of 23 what are the gaps called between schwann cells? Nodes of Ranvier 9 of 23 what is the resting potential of a nerve membrane? -70 mv 10 of 23 Factors affecting speed of nerve transmission? -Diameter of axon. -Myelin Sheath 11 of 23 what happens at +40mv -Sodium Channels Close. -Potassium Channels open. 12 of 23 Which way do nerve impulses flow? Away from the cell body. 13 of 23 which side of a nerve membrane is more postive? The outside of the axon. 14 of 23 what do dendrons do? Recieves stimulu or neurotransmitters from other cells and carries it towards the cell body. 15 of 23 What happens during Vasodilation? Blood vessles near skin get wider allowing more blood to flow near the surface and lose heat, cooling you down. 16 of 23 Why do we need to regulate internal body temperature? To provide the optimum conditions for enzyme catalysed reactions to be carried out. 17 of 23 main idea of an ABSOLUTIST? they take an unwavering moral position. 2 completely opposite attitudes. either NEVER under any circumstances, or ALWAYS accpetable. 18 of 23 Idea of a RELATIVE They recogniser that there are exceptions to circumstances and that not everyone has the same view. 19 of 23 what does the Performance enhancing drug Beta 2 antagonists do? Dilate airways, so more oxygen. 20 of 23 what do narcotic analgesics do? pain killers which mask injury and pain. 21 of 23 what do anabolic steroids do? Are synthetic male hormones which promote muscle growth allowing training with less fatigue and increased aggression. 22 of 23 what is gene doping? Attempt to chamnge genetic makeup of cells to enhance athletic performance. 23 of 23
Comments
No comments have yet been made