Hello readers,
This blog post is about our science experiment last week we dissected a heart and learned some of the parts.
What equipment did we use?
We first used bamboo skewers to stick it in the superior vena cava and started to cut the heart to see the heartstrings, Valves, Septum, and Muscle walls.
What job do these parts do?
Arteries: Arteries are blood vessels that carry oxygen-rich blood away from the heart to the rest of the body. They play a crucial role in the circulatory system by delivering nutrients and oxygen to the tissues and organs throughout the body.
Veins: Veins are blood vessels that carry blood toward the heart. They transport deoxygenated blood from the body back to the heart to be re-oxygenated and recirculated.
Septum: The septum is a partition or wall that separates two chambers or cavities in a biological structure, such as the nasal septum that divides the left and right nostrils or the septum that separates the chambers of the heart.
Ventricles: Ventricles are the two lower chambers of the heart. They receive blood from the atria and pump it into the arteries. In the brain, ventricles are interconnected cavities filled with cerebrospinal fluid.
Valves: Valves are structures that control the flow of fluids within the body. In the circulatory system, valves within the heart and veins prevent the backward flow of blood. Similarly, valves in the digestive system regulate the movement of food through the digestive tract.
Bacteria and protists are similar in that they are single-celled organisms. However, they are different in many ways such as their cell structure, genetic material, and metabolic processes. While bacteria are prokaryotic organisms with no nucleus, protists are eukaryotic organisms with a true nucleus. Additionally, bacteria play an important role in many ecological processes, while protists often serve as a food source for larger organisms.
Kingdom, Phylum, Class,Β Order, Family, Genus, Species.
Species-In biology, a species is a group of organisms that share similar characteristics and can interbreed to produce fertile offspring. This means that members of the same species can mate and produce viable offspring that can also reproduce. However, they are reproductively isolated from other species, meaning they cannot interbreed and produce viable offspring with members of other species. The concept of species is important in understanding the diversity of life on Earth and how organisms are classified and organized into different groups.
Binomial naming- Binomial naming, also known as binomial nomenclature, is a standardized system used to give each species of organism a unique scientific name. The system was developed by Carl Linnaeus in the 18th century and involves giving each species a two-part Latin name, consisting of the genus name and the species name. This naming system is important because it allows scientists all around the world to refer to the same organism using a standardized name, regardless of their native language or location.
Classification of living things- Classification of living things is the process of organizing and categorizing living organisms based on their physical and behavioral characteristics. It involves grouping organisms into different hierarchical levels, such as kingdom, phylum, class, order, family, genus, and species. This system of classification helps scientists and researchers better understand the relationships between different organisms and their evolutionary history.