Skeletal Structure and Functions 2.0
This type of tissue forms the outer layer of the skin and is primarily composed of keratinocytes, providing a protective barrier.
What is the epidermis?
This type of cell is responsible for transmitting signals throughout the body and is the main functional unit of the nervous system.
What is a neuron?
This type of cell is responsible for carrying oxygen in the blood and has a distinctive shape.
What is a red blood cell?
This molecule makes up 60% of the human body and is critical for human life.
What is water?
This process involves the conversion of chemical energy from ATP into mechanical energy and allows muscles to contract.
What is muscle contraction?
This long bone in the upper arm serves as an attachment point for muscles and is crucial for arm movement; its origin is at the scapula and and inserts at the radius and ulna.
What is the humerus?
This cranial nerve is responsible for transmitting sensory information related to smell from the nasal cavity to the brain.
What is the olfactory nerve (cranial nerve I)?
These cells are the primary defenders of the immune system, capable of recognizing and responding to pathogens.
What are lymphocytes?
These biological catalysts lower the activation energy of metabolic reactions and are crucial for sustaining life processes and are molecules.
What are enzymes?
When exercising this muscle fiber, known for its endurance and ability to sustain prolonged exercise is used.
What are slow twitch fibers (SO)?
This connective tissue in the skeletal system provides flexibility and support; it‘s found in joints and is composed of chondrocytes in a matrix.
What is cartilage?
This cranial nerve is responsible for transmitting visual information for the retina to the brain.
What is the optic nerve (cranial nerve II)?
This type of cell is responsible for breaking down bone tissue during the process of bone remodeling.
What is an osteoclast?
In anatomical terms this direction refers to a structure being close to the midline of the body.
What is medial?
This large muscle group is located in the thigh and is crucial for activities such as walking, running, and squatting.
What are the quadriceps?
This layer of the skin is located beneath the epidermis and plays a huge role in sensation; it contains connective tissue, blood vessels, and sensory receptors.
What is the dermis?
This part of the brain is responsible for coordinating voluntary movements and balance.
What is the cerebellum?
This type of bone tissue is characterized by a porous structure and is found at the ends of long bones and in the interior of others.
What is spongy bone?
This plane divides the body into anterior and posterior sections.
What is the frontal plane?
This muscle is located in the chest and is responsible for the movement of the shoulder joint and is often targeted in push up and bench press exercises.
What is the pectoralis major?
This complex structure in the skeletal system consists of compact and spongy bone and serves as the primary site for hematopoiesis and mineral storage and is also composed of osteocytes within a matrix.
What is bone marrow?
This system consists of all the nerves that branch out from the brain and spinal cord, connecting the central nervous system to the rest of the body.
What is the peripheral nervous system (PNS)?
This process is regulated by hormones such as the parathyroid hormone and involves the renewal and reshaping of bone tissue throughout a person's life.
What is bone remodeling?
This term describes the body’s ability to maintain a stable internal environment despite external changes such as temperature.
What is homeostasis?
This protein is found in muscle fibers and binds to calcium ions and plays a crucial role in the contraction process by allowing myosin to attach to actin.
What is troponin?