118 results found

Search Results for: lungs

Book lungs

Book Lungs Definition Lungs are known as the organs that help organisms breathe. When we think of lungs, we think of the... Read More

Respiration

Organization of the Respiratory System Each lung is composed of air sacs called alveoli - the sites of gas exchange with... Read More

Ventilation

Ventilation Definition Often when persons think of ventilation, they think of getting clean or enough air into a room. This... Read More

Lungs

The lungs are a pair of breathing organs located with the chest which remove carbon dioxide from and bring oxygen to the... Read More

Organization

Organization Definition The meaning of the term "organization" is very simple. It means the state wherein things are... Read More

Simple squamous epithelium

Simple Squamous Epithelium Definition Simple squamous epithelium, also known as simple squamous epithelial tissue or... Read More

Smooth muscle

The smooth muscle can be described as a type of muscle in the human body that is non-striated and involuntary in action.... Read More

Lung compliance

Definition noun (1) The ability of the lungs to stretch in a change in pulmonary volume relative to an applied change in... Read More

Diffusion

Diffusion Definition Diffusion is the net passive movement of molecules or particles from regions of higher to regions of... Read More

Semilunar valve

The human heart structure consists of heart chambers (2 atria and 2 ventricles) that differ functionally from each other.... Read More

Triploblastic

Triploblastic Definition A triploblastic animal had three main layers of tissue during embryonic development. The central... Read More

Animal

Animal Definition An animal (plural: animals) refers to any of the eukaryotic multicellular organisms of the biological... Read More

Expiration

Expiration (Science: physiology) The act of breathing out or expelling air from the lungs. Origin: L. Spirare = to breathe a... Read More

Breathing

Breathing 1. Respiration; the act of inhaling and exhaling air. Subject to a difficulty of breathing. (Melmoth) 2. Air in... Read More

Kingdom Animalia

Kingdom Animalia Definition Each person can say that they know of or can name at least one animal. However, do people know... Read More

Ancylostoma

Definition noun A genus belonging to the family of Ancylostomatidae which is a family of nematodes that includes the... Read More

Bronchus

Bronchus (Science: anatomy chest medicine) Any of the larger air passages of the lungs, having an outer fibrous coat with... Read More

Passive transport

Passive transport is a type of cellular transport in which substances such as ions and molecules move down their respective... Read More

Phospholipid

What is a phospholipid? Phospholipids are a subgroup of lipids. Other major types of lipids are fatty acids, sphingolipids,... Read More

Three-chambered heart

Three-chambered heart congenital abnormality in which there may be a single atrium with two ventricles or a single ventricle... Read More

Cancer

Cancer definition In biology, cancer is defined as the malignant growth due to uncontrolled cell division. It is now used... Read More

Definitive host

Different Biological Relationships The biological world is interconnected whether we notice it or not. All the life forms... Read More

Anaerobic

As largely known are the subset of biological processes that are directly correlated to the ‘usage of molecular oxygen’,... Read More

Phylum

Just like it is easy to identify and sort anything in the supermarkets when placed in the right section with proper display... Read More

Parenchyma

Parenchyma Definition What does parenchyma mean? Let's define the word "parenchyma". Most of the functional tissues in... Read More

Alveolus

Definition noun, plural: alveoli (1) pulmonary alveolus; air sac (2) (general) A concave cavity or pit alveolar,... Read More

System

A system pertains to interdependent or interrelated objects comprising and functioning as a whole. In biology, it may refer... Read More

Skeletal system

What is the Skeletal System? How to define a skeleton? The skeletal system is the main framework that gives your body its... Read More

Organ

Definition noun, plural: organs A group of tissues that perform a specific function or group of functions Supplement An... Read More

Respiration rate

Respiration Rate Definition Respiration rate is a vital life process that expresses the breathing rate in an organism... Read More

Inhale

Inhale to breathe or draw into the lungs; to inspire; as, to inhale air; opposed to exhale. Martin was walking forth to... Read More

Spider

spider 1. (Science: zoology) Any one of numerous species of arachnids comprising the order araneina. Spiders have the... Read More

Oxygen

Oxygen Definition In biochemistry, oxygen is the colorless, odorless, gaseous element represented by the symbol "O", with... Read More

Respiratory system

Definition noun An organ system comprised of organs and structures associated for respiration or gas exchange Supplement An... Read More

Degenerative disease

A degenerative disease is defined as a disease characterized by the worsening condition due to the deterioration of the... Read More

Expire

Expire 1. To breathe out; to emit from the lungs; to throw out from the mouth or nostrils in the process of respiration;... Read More

Amphibians & Early Reptiles

Amphibia Definition (Science: zoology) Amphibia is one of the classes of vertebrates. The amphibia are distinguished by... Read More

Aves

Aves Definition What are birds classified as? Birds constitute the class Aves of the kingdom Animalia. How to define Aves?... Read More

Cytology

The biological world is so diverse that studying it under a single umbrella as a subject is next to impossible. Hence,... Read More

Egestion

Egestion is the act or process of voiding or discharging undigested food as faeces. To egest means to discharge undigested... Read More