Animal Breathing: Types and Respiratory Processes
Usually, the inclusion of oxygen into an animal’s body is called breathing, but breathing encompasses three processes:
- Ventilation: Oxygen is taken from the environment and brought to the respiratory organ, and carbon dioxide is expelled.
- Gas Exchange: This occurs between respiratory organs and blood. The exchange takes place by diffusion, a process by which molecules pass from a more concentrated region to a less concentrated one without expenditure of energy. These regions are separated by a semipermeable
Human Body Systems: Digestion and Respiration Explained
The Importance of Nutrients and Body Systems
The cells of all organisms need nutrients to grow and function. Heterotrophic organisms, like us, can’t produce their own nutrients. They obtain them from food. Multicellular organisms have many organs. These organs are grouped together into different systems that perform diverse functions. Five important systems work together to maintain our organisms correctly: Digestive, Respiratory, Circulatory, Excretory, and Lymphatic systems.
Digestion: Breaking
Read MoreFriction, Photosynthesis, Matter, and Scientist
Friction
Newton’s Laws:
- 1st: An object remains at rest, or in motion at a constant speed in a straight line, unless acted upon by an external force.
- 2nd: Force = Mass * Acceleration
- 3rd: For every action, there is an equal and opposite reaction.
Velocity: Velocity is the speed in combination with the direction of motion of an object.
Positive Acceleration: Positive acceleration occurs when an object is speeding up in the positive direction. For example, if a car is moving forward and its velocity is increasing,
Read MoreDiaphragm: Anatomy, Function, and Attachments
The diaphragm forms the floor of the rib cage. It is a very wide, flat muscle that separates the chest wall from the abdomen. It is shaped like a dome, whose base corresponds to the lower chest girth and is wider transversely than anteroposteriorly. The convexity is related to the thoracic viscera and the concavity with the abdominal viscera.
Besides the lower attachment, the plan will lower the chest up and down, tilt the steering wheel, and move front to back.
The diaphragmatic dome rises a bit
Read MoreUnderstanding Human Biology: Cell Structure to Ecosystem Impacts
Cell Structure and Human Biology
Cell Structure
Plasma membrane, cytoplasm (ribosomes, mitochondria, endoplasmic reticulum, Golgi apparatus, vacuoles, lysosomes), nucleus (nuclear membrane, nucleoplasm, chromatin, nucleolus).
Tissues
- Epithelial: Lining epithelium (mucous membranes, endothelia, epidermis), gland (exocrine, endocrine, mixed)
- Connective: Connective tissue, adipose, cartilaginous, osseous
- Muscle: Smooth, striated, cardiac
- Nerves: Neurons, glial cells
Body Organization
Structures formed by various
Read More