Topic 1: Anatomy 1410 university of Manitoba | Latest Version | 2024/2025 | Rated A+

Topic 1: Anatomy 1410 university of Manitoba | Latest Version | 2024/2025 | Rated A+ What is the main function of epithelial tissue? Epithelial tissue serves as a protective barrier, covering body surfaces, lining cavities, and forming glands. How does the skeletal system contribute to maintaining homeostasis? The skeletal system maintains homeostasis by producing blood cells, storing minerals like calcium, and providing structural support for the body. What is the role of the sarcoplasmic reticulum in muscle contraction? The sarcoplasmic reticulum stores and releases calcium ions, which are crucial for triggering muscle contraction. How does bone remodeling occur, and why is it important? Bone remodeling involves the resorption of old bone by osteoclasts and the formation of new bone by osteoblasts, which is essential for maintaining bone strength and responding to stress. 2 What are the four major types of tissues in the human body? The four major types of tissues are epithelial, connective, muscle, and nervous tissues. How do the three types of muscle tissues differ in structure and function? Skeletal muscle is striated and voluntary, smooth muscle is non-striated and involuntary, and cardiac muscle is striated and involuntary, found only in the heart. What is the significance of the blood-brain barrier? The blood-brain barrier protects the brain from harmful substances and pathogens by regulating the passage of molecules from the bloodstream into the brain. How does the structure of the neuron facilitate signal transmission? Neurons have dendrites to receive signals, a cell body to process information, and an axon to transmit impulses to other cells, allowing rapid communication within the nervous system. What is the role of cartilage in the skeletal system? Cartilage provides flexible support, reduces friction in joints, and serves as a template for bone formation during development. 3 How do synovial joints function, and where are they found? Synovial joints allow for a wide range of movements due to the presence of a fluid-filled cavity between the articulating bones, found in locations like the knee, shoulder, and hip. What is the function of tendons and ligaments? Tendons connect muscles to bones, allowing for movement, while ligaments connect bones to other bones, stabilizing joints. How does the integumentary system protect the body? The integumentary system, which includes the skin, protects the body from physical damage, pathogens, and dehydration, and also regulates