HUMB1004 Study Guide - Final Guide: Ultimate Tensile Strength, Skeletal Muscle, Semen
4 Aug 2018
School
Department
Course
Professor
Document Summary
Tendons attach muscles to bones, skeletal: heat production. Shivering, thermoregulation, skeletal: stabilization of body. Anti-gravity muscles, skeletal: pumps blood around the body. Cardiac muscle, in the myocardium: moves substances around the body. Produces body movements (assist in respiration, movement of joints, facial expression) Striated due to sarcomeres (functional unit of muscle) Matrix of collagen fibres surrounds the fibroblasts- wispy, roughly oriented parallel. This tensile arrangement allows for strength to pull on the bone- is also found in ligaments. Changes vessel diameter: vasodilation/bronchodilation = increase diameter decrease resistance to flow and increase flow. Vasoconstriction/bronchoconstriction = decrease diameter and increase resistance to flow and decrease flow: peristalsis = occurs for urine food and seminal fluid, smooth muscle contracts in wave like motion propelling the food forwards. Controls blood volume and air way diameter. Propels food through gi tract and urine through ureter (peristalsis) Controls size of organs, propels fluid through tubes, controls light entering the eye.
