Freshman Spring Final Study Guide

Human Anatomy and Physiology: Bones and Muscles

  • The Skeletal System

    • Definition: The fundamental framework of the human body.
    • Primary Functions:
      • Provides structural support for the body.
      • Protects internal vital organs.
      • Enables physical movement through interaction with muscles.
      • Produces blood cells (hematopoiesis).
    • Key Bones for Recognition:
      • Skull: The bone structure forming the head and protecting the brain.
      • Pelvis: The basin-shaped complex of bones that connects the trunk and the legs.
      • Femur: The thigh bone, which is the longest and strongest bone in the body.

  • The Muscular System

    • Definition: The system of organs composed of muscle tissue responsible for the movement of the body.
    • Primary Functions:
      • Responsible for all physical movement.
      • Maintains body posture and stability.
      • Generates body heat as a metabolic byproduct.
    • Major Superficial Muscles:
      • Deltoids: Muscles located at the shoulder.
      • Quadriceps (Quads): A group of muscles located on the front of the thigh.
      • Gluteus: The large muscles of the buttocks.

  • Study and Identification Strategies

    • Visual Review: Utilize diagrams to pay close attention to labels and specific arrows indicating bone and muscle locations.
    • Memorization: Master the names found in the provided word banks.
    • Self-Testing: Practice identifying anatomy on a blank diagram without the assistance of word banks to ensure mastery.

Refusal Skills

  • Definition and Importance

    • Refusal skills are specific communication strategies used to decline unwanted offers or invitations effectively.
    • These are critical in difficult situations involving pressure to engage in unwanted behaviors, such as substance use.

  • The Four-Step Refusal Strategy

    • 1. Say No: This is the first and most direct step. The refusal should be clear and immediate.
    • 2. Give a Reason: Provide an honest and clear explanation for the refusal.
    • 3. Offer an Alternative: Suggest a different, healthier activity or option to redirect the social interaction.
    • 4. Leave the Situation: If the pressure persists, the final step is to remove yourself from the environment entirely.

  • Key Principles for Effective Refusal

    • Directness: Avoid using vague or postponing language that might imply a future "yes."
    • Body Language: Use non-verbal cues (eye contact, firm stance) to reinforce the verbal refusal.
    • Identifying Red Flags: Be aware when someone persistently pressures you, as this indicates they may not have your best interests at heart.

General Substance Abuse and Addiction

  • Substance Abuse Definition: The harmful or hazardous use of psychoactive substances, which includes both alcohol and illicit drugs.

  • Addiction: Categorized as a chronic, relapsing brain disease. It is characterized by compulsive drug seeking and use despite the presence of harmful consequences.

  • Dependence (Physical): A physiological state where the body has adapted to a drug's presence. If the drug is stopped, the individual will experience withdrawal symptoms.

  • Withdrawal Symptoms: A group of unpleasant physical and psychological symptoms that manifest when a drug-dependent person ceases substance use.

  • The Teenage Brain and Vulnerability

    • The teenage brain is still in a stage of development and maturation.
    • Because it is still forming, the adolescent brain is significantly more vulnerable to the harmful effects of chemical substances.

  • Impacts and Misconceptions

    • Adverse Health Consequences: Negative impacts on both physical and mental well-being.
    • Social and Life Impact: Substance abuse negatively impacts relationships, academic performance, and future career success.
    • Common Misconceptions: Many young people incorrectly believe that modern nicotine delivery systems, like e-cigarettes, are safe.

Specific Substances: Nicotine, Marijuana, and Inhalants

  • Nicotine and E-Cigarettes

    • Nicotine: A highly addictive chemical compound found in tobacco and most e-cigarettes.
    • E-cigarettes: Devices that heat a liquid solution (e-juice) to create an aerosol for inhalation. This aerosol often contains nicotine and unknown chemicals.
    • Risks: Nicotine is physically addictive, and quitting leads to specific withdrawal symptoms. The long-term health effects of e-cigarette use are currently unknown.

  • Marijuana

    • Definition: A psychoactive drug derived from the cannabis plant.
    • Short-term Hazards: Impairs judgment, disrupts motor coordination, and slows reaction time.
    • Health Risks: Contains cancer-causing chemicals and can lead to respiratory problems.
    • Cognitive and Mental Health: Use is linked to potential IQ loss and may trigger psychosis.
    • Psychosis: A severe mental state where the individual loses contact with reality, often experiencing hallucinations and paranoia.

  • Inhalants

    • Definition: Dangerous, volatile chemicals found in common household products. When inhaled, they are absorbed rapidly into the bloodstream.
    • Sudden Sniffing Death (SSD) Syndrome: A potentially fatal condition that can occur even during the first instance of inhalant use.
    • Permanent Organ Damage: Regular use leads to irreversible damage to the heart, liver, kidneys, and brain.

  • Legal and Social Context

    • Underage substance use and driving under the influence carry severe legal consequences.
    • Statistical Note: The majority of teenagers do not engage in substance abuse.

Alcohol: Effects and Legalities

  • Ethanol and Central Nervous System Effects

    • Ethanol: The specific type of alcohol found in alcoholic beverages; it is a powerful and addictive intoxicant.
    • Depressant: Alcohol acts as a depressant, meaning it slows down the functions of the central nervous system.
    • Immediate Effects: Includes slowed reaction times, impaired vision, and clouded thinking/judgment.

  • Blood Alcohol Concentration (BAC)

    • Definition: The amount of alcohol present in the bloodstream, expressed as a percentage.
    • Factors Influencing BAC:
      • Body size and weight.
      • Biological sex.
      • The presence of other drugs in the system.

  • The Multiplier Effect

    • This is a dangerous interaction that occurs when alcohol is combined with other drugs.
    • The combined effect of the substances is greater than the simple sum of their individual effects.

  • Risks Specific to Youth

    • Brain Development: Alcohol can cause physical changes in the developing teenage brain regardless of whether the use is short-term or long-term.
    • Increased Risk of Alcoholism: Individuals who begin drinking at a young age have a significantly higher statistical likelihood of developing alcohol abuse or dependence later in life.
    • Legal Ramifications: For those under the age of 2121, buying, possessing, or consuming alcohol is illegal and can result in arrest, fines, and the loss of driving privileges.

  • Levels of Impairment

    • BAC levels range from minor impairment to total loss of consciousness and potential death.

Depression and Mental Health Support

  • Understanding Depression

    • Definition: A clinical brain disorder that impacts thoughts, moods, and behaviors.
    • Diagnostic Threshold: Symptoms must persist for at least 22 weeks.
    • Common Symptoms:
      • Persistent sad or irritable mood.
      • Loss of interest in previously enjoyed activities.
      • Changes in weight or appetite.
      • Altered sleep patterns.
      • Feelings of worthlessness, fatigue, and restlessness.
      • Difficulty concentrating.
      • Thoughts of death or suicide.

  • Mental Disorders and Stigma

    • Mental Disorder: An illness of the mind affecting thoughts and behaviors that prevents a healthy, happy life.
    • Categories: Includes Anxiety disorders, Mood disorders (Depression, Bipolar), Eating disorders, Conduct disorders, and Schizophrenia.
    • Stigma: Negative attitudes or beliefs about mental illness that often act as a barrier, preventing people from seeking necessary help.

  • Support and Treatment

    • Mental health concerns are highly treatable, especially among teenagers.
    • The ACT Strategy (Helping a Friend):
      • Acknowledge: Recognize and validate their feelings.
      • Care: Show the individual that you care about them.
      • Tell: Inform a trusted adult immediately.
    • Helping Professionals: Psychiatrists, psychologists, and counselors.
    • Important Warnings: Self-injury is a sign of intense emotional distress requiring professional help. Asking someone about suicide does not "put the idea in their head"; rather, it can open the door for help.

Principles of Training: FITT and OPS

  • Physical Fitness Categories

    • Health-Related Fitness: Components contributing to general health: cardiovascular endurance, muscular strength, muscular endurance, flexibility, and body composition.
    • Skill-Related Fitness: Components contributing to athletic performance: agility, balance, coordination, power, reaction time, and speed.

  • The FITT Principle

    • Frequency: How often you exercise.
    • Intensity: How hard you work during the exercise.
    • Time: The duration of the exercise session.
    • Type: The specific kind of exercise performed.

  • The OPS Principles

    • Overload Principle: To improve fitness level, the body must be subjected to a greater load (more weight, reps, or intensity) than it is normally accustomed to.
    • Progression Principle: The practice of gradually increasing the demands on the body over time to ensure continued improvement.
    • Specificity Principle: Training must be tailored to specific goals. The type of exercise must match the specific fitness component being targeted (e.g., running to improve cardiovascular endurance).

CPR and AED Procedures

  • Emergency Interventions

    • CPR (Cardiopulmonary Resuscitation): An emergency procedure involving chest compressions and rescue breaths to manually circulate blood and oxygen to the brain when the heart has stopped.
    • AED (Automated External Defibrillator): A portable device that analyzes heart rhythm and can deliver an electrical shock to restore normal heart rhythm.

  • Critical Steps in an Emergency

    • 1. Survey the Scene: Ensure the environment is safe for the rescuer before approaching the victim.
    • 2. Check Victim Response: Determine if the victim is conscious.
    • 3. Check for Breathing: Look, listen, and feel for breathing for a duration of 5−10 seconds5-10\,\text{seconds}.
    • 4. AED Application:
      • Ensure the chest is bare and dry.
      • Place pads on the upper right chest and lower left chest.
      • Do not touch the victim while the AED is analyzing or delivering a shock.
      • Follow the device's voice prompts.

  • Choking

    • Choking is a life-threatening emergency. Rescuers must recognize signs and use specific techniques to assist the individual.