muscular system
what is the primary function of the muscular system?
produce movement by contracting muscles
What is the primary function of the nervous system?
The primary function of the nervous system is to coordinate and control body activities by transmitting signals between different parts of the body
What is multiple sclerosis, and how does it impact the nervous system?
Multiple sclerosis is an autoimmune disease in which the body's immune system attacks the protective covering (myelin) of nerve fibers in the central nervous system (brain and spinal cord). This damage disrupts communication between the brain and the body, leading to symptoms such as muscle weakness, numbness, difficulty walking, and cognitive problems.
How do the muscular and nervous systems work together to produce movement?
The nervous system sends electrical signals from the brain to motor neurons, which then transmit these signals to the muscles
What is the primary function of the respiratory system?
The primary function of the respiratory system is to facilitate the exchange of gases (oxygen and carbon dioxide)between the body and the environment
What three categories that Muscle are divided into?
smooth, cardiac, and skeletal
What are the two main divisions of the nervous system?
The nervous system is divided into two main parts: the central nervous system, which consists of the brain and spinal cord, and the peripheral nervous system
What is osteoarthritis, and how does it affect the musculoskeletal system?
Osteoarthritis is a degenerative joint disease that occurs when the protective cartilage between bones breaks down, leading to pain, swelling, stiffness, and decreased range of motion in the affected joints
How does the circulatory system interact with the respiratory system to deliver oxygen to the body?
The respiratory system brings oxygen into the lungs, where it diffuses into the bloodstream through the alveoli. The circulatory system, specifically the heart and blood vessels, transports oxygen-rich blood from the lungs to tissues throughout the body
How do the lungs contribute to gas exchange?
The lungs contain tiny air sacs called alveoli, where gas exchange occurs. Oxygen from the air diffuses across the thin walls of the alveoli into the bloodstream, while carbon dioxide diffuses from the blood into the alveoli to be exhaled
what special cells make up Muscles
Muscle fibers
What is a neuron, and what is its role in the nervous system?
A neuron is a nerve cell that transmits electrical impulses throughout the body. Neurons communicate with each other and other cells to carry out tasks such as muscle movement, sensory perception, and thought processes
What is diabetes, and how does it affect the body?
Diabetes is a chronic disease that affects the body's ability to regulate blood sugar. In type 1 diabetes, the pancreas doesn't produce insulin, a hormone needed to regulate blood sugar
How do the digestive and circulatory systems work together to provide energy to the body?
The digestive system breaks down food into nutrients, such as glucose, amino acids, and fatty acids. These nutrients are absorbed into the bloodstream through the walls of the small intestine. The circulatory system then carries these nutrients to cells throughout the body for energy, growth, and repair
What is the role of the diaphragm in breathing?
The diaphragm is the primary muscle responsible for breathing. During inhalation, the diaphragm contracts and moves downward, increasing the volume of the chest cavity and allowing air to flow into the lungs. During exhalation, the diaphragm relaxes and moves upward, helping push air out of the lungs
what is the largest muscle in the body
Gluteus maximus
How does the autonomic nervous system regulate bodily functions?
The autonomic nervous system regulates involuntary functions such as heart rate, digestion, and breathing
What is asthma, and how does it affect the respiratory system?
Asthma is a chronic condition that causes inflammation and narrowing of the airways, making it difficult to breathe. Triggers such as allergens, exercise, or infections can cause asthma attacks, leading to wheezing, shortness of breath, and coughing
How do the skeletal and muscular systems interact to enable movement?
The skeletal system provides a rigid framework of bones that supports the body and protects vital organs. The muscular system is responsible for contracting and pulling on bones, creating movement at the joints
What happens during an asthma attack?
During an asthma attack, the airways become inflamed and constricted, making it difficult to breathe
what are 5 main fuctions of the muscular system
movement, support, protection, heat generation, and blood circulation
What is a reflex, and how does it involve the nervous system?
A reflex is an automatic, involuntary response to a stimulus, which involves the nervous system bypassing the brain for faster action
What is hypertension, and how does it impact the circulatory system?
Hypertension, or high blood pressure, occurs when the force of the blood against the walls of the arteries is consistently too high. It can damage blood vessels and organs, increasing the risk of heart disease, stroke, kidney disease, and other cardiovascular complications
How do the endocrine and nervous systems coordinate the body’s response to stress?
When the body perceives stress, the nervous system activates the "fight or flight" response, sending signals to the adrenal glands to release adrenaline. Simultaneously, the endocrine system may release cortisol, another stress hormone, to help regulate energy and the body's response
How does the respiratory system help regulate blood pH?
The respiratory system helps regulate blood pH by controlling the levels of carbon dioxide in the blood