Notes, summaries, assignments, exams, and exercises for Sport and physical education for Secondary education

Cardiovascular System Adaptation to Exercise

The cardiovascular system, comprising the heart, arteries, and veins, is responsible for providing oxygen and nutrients throughout the body. Physical exercise produces a significant improvement in the functioning of the heart, increasing the volume of blood ejected with each stroke. It also leads to an increase in the cavities of the heart, and the arteries and veins widen, opening a greater number of capillaries.

Respiratory System and Exercise Benefits

The respiratory system, including the lungs and airways, is responsible for taking oxygen from the air, contributing it to the blood, and eliminating carbon dioxide by expelling it to the exterior. This increased volume, caused by physical exercise,...

Tips for Improvement

• Ensure that you enjoy perfect health before beginning any exercise, and if not, consult with a specialist tutor to tell us what exercises to do.
• Begin with moderate exercise; we will increase based on improvements and individual achievement.
• Consult competent staff when we need information.
• Physical activities that are mobilized are the most beneficial.
• You must choose an activity that amuses us, allowing us to identify with it (aerobic).
• Play sports with people, not alone.
• Develop an activity without competing.
• Alternating practices motivates you more.
• To make group practice, maintain hygiene and care.
• Set an hour weekly and commit to complying.
• Incorporate physical activity actions to reduce body weight daily.
• Aim for a balanced

Central Nervous System: Information Analysis, Storage, and Coordinating Actions

Spinal Cord: In the center of the spinal reflexes, the spinal cord processes information through sensory nerves that carry impulses from the body to the brain. Motor nerves and nerves from the spinal cord spread to the brain and the effectors.

Brainstem:

Medulla Oblongata: Contains the cardiovascular center (controls heart rate and strength, and the diameter of blood vessels) and the respiratory center.

Pons: Its nuclei are the pneumotaxic center (shortens inspiration and facilitates expiration) and the apneustic center (prolongs inspiration, inhibiting expiration).

Midbrain: Contains reflex centers for eye movement, head and neck.

Diencephalon: Contains the thalamus...

Sensory Receptors

What is the mission of sensory receptors? Their function is to receive information and transmit it to the central nervous system, which processes it and produces a response. The response can be sensory or motor.

Types of Sensory Receptors

What types of sensory receptors do you know?

• Photoreceptors: detect light stimuli, located in the eyes.
• Mechanoreceptors: respond to mechanical stimuli such as pressure, contact, changes in position and sound waves. They are found in several groups: in the skin, in the muscles and joints, and in the hearing receptors.
• Chemoreceptors: capture information about chemical changes. The taste and smell receptors belong to this group.
• Thermoreceptors: respond to temperature changes, as some receptors in

Nervous System

The nervous system is responsible for receiving, interpreting and responding to internal and external stimuli. It transmits nerve impulses through specialized neurons that carry signals throughout the body.

Central Nervous System

• Encephalon: formed by the brain, which controls intelligence and memory.
• Cerebellum: regulates muscular activity and coordination.
• Medulla Oblongata: controls vital functions such as breathing and heartbeat.
• Spinal Cord: receives sensory information and transmits motor responses.

Peripheral Nervous System

• Cranial Nerves: conduct stimuli to and from the brain.
• Spinal Nerves: transmit responses to the body.
• Somatic Nervous System: voluntary and reflex actions.
• Autonomic Nervous System:
  • Sympathetic System: prepares

Cell Structure and Organelles

Cell: the smallest functional unit that performs the three vital functions: nutrition, relation and reproduction.

Cell membrane: a thin limit around the cell. Its function is to regulate the passage of substances.

Cytoplasm: contains many organelles. Its function is to host cellular processes.

• Mitochondria: cellular respiration.
• Cytoskeleton: supports the cell and drives mitosis.
• Ribosomes: synthesize proteins.
• Endoplasmic reticulum: transports substances.
• Golgi apparatus: packages and sends out proteins and glucids.
• Vacuoles: store and eliminate substances.

Nucleus: contains DNA, which protects the cell and carries genetic information.

The Cell and Its Vital Functions

Cell: a functional unit that develops the three vital...

Optimizing Respiration & Mastering Relaxation

Understanding Respiratory Mechanics

Respiratory-Movement Relationship

Respiration involves the exchange of oxygen (O2), carbon dioxide (CO2), and nitrogen, enabling the body to generate energy.

Types of Breathing

• Chest Breathing: Involves intercostal muscles or abdominal muscles.
• Diaphragmatic Respiration: Often complements chest breathing for complete respiratory function.

Dynamic Respiratory Phases

The dynamic output includes: Abdominal Inspiration, Thoracic Inspiration, Abdominal Expiration, and Thoracic Expiration.

Tips to Enhance Respiratory Capacity

• Avoid awkward postures.
• Practice deep breathing (e.g., in a park or mountain setting).
• Maintain a calm, steady breathing pace.
• Avoid accelerated breathing.

Endocrine and Nervous System Control

Introduction. The endocrine system and the nervous system work together to control the body. The nervous system receives information and sends messages to the body, and it acts differently depending on the type of action.

Endocrine system. Messages are chemical messengers that travel through the blood to reach their target. The response may be muscle contraction, secretion of substances, or changes in muscle activity.

Nervous system. Messages are electro-chemical signals carried by neurons. They travel through neurons, and the response is a stimulus that drives another neuron to cause muscle contraction or the secretion of substances.

Types of Glands

• Exocrine glands: Their products are not released into the blood.

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