The human heart anatomy

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Skeletal Muscles

Lesson 1: MUSCLES

A. Subject Name: Biology
B. Lesson Reference no. 1
C. Lesson Title: Let’s Move and Let’s Groove
(Skeletal Muscles)

D. Lesson Description

This lesson makes the students understand how the skeletal muscles move or act and they will also know about the muscles’ origins and insertions so with the importance and applications of muscles’ daily activities.

E. Learning Outcomes:

At the end of the lesson, the students should be able to:
• determine the different movements of the skeletal muscles;
• identify the muscles; their origins, their insertions and their actions;
• create a dance move using the different muscles in the arms, legs and thighs.

F. Review of the Previous Learning

Concept: Microscopic Anatomy of the Skeletal Muscles.



G. Learning Presentation

• Object 1: Muscles moves, but we are not aware of the names of the said movements. Try to view this video and imitate the dance moves and try to check if you know the names of movements.








If you’re done dancing, try to click this for you to find out what are the names of the different body muscle movement that you have just performed.

• Object 2: For you to have an overview regarding skeletal muscles, try to visit and read this:

Skeletal Muscles

Click this in order for you to identify the origin, insertion and action done by each muscle.


H. Learning Activity

Label the muscles by visiting this.

Create your own dance moves that may involve the muscles that act in the Arm, Legs and Thigh by using this music video.




I. Evaluation

Take the quiz by visiting this page.

J. Agreement

Read about nervous system, its importance and the organs.

Check this powerpoint presentation from teachertube.

Skeletal Muscle

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Skeletal Muscle

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Integumentary System

Click here for Invertebrate Integumentary System

Animal Tissues

Click here to get information about animal tissues

Animal Cells

Animal Cell Structure
Animal cells are typical of the eukaryotic cell, enclosed by a plasma membrane and containing a membrane-bound nucleus and organelles. Unlike the cells of the two other eukaryotic kingdoms, plants and fungi, animal cells don't have a cell wall. This feature was lost in the distant past by the single-celled organisms that gave rise to the kingdom Animalia.
Anatomy of the Animal Cell
The lack of a rigid cell wall allowed animals to develop a greater diversity of cell types, tissues, and organs. Specialized cells that formed nerves and muscles -- tissues impossible for plants to evolve -- gave these organisms mobility. The ability to move about by the use of specialized muscle tissues is the hallmark of the animal world. (Protozoans locomote, but by nonmuscular means, i.e. cilia, flagella, pseudopodia.)The animal kingdom is unique amongst eukaryotic organisms because animal tissues are bound together by a triple helix of protein, called collagen. Plant and fungal cells are bound together in tissues or aggregations by other molecules, such as pectin. The fact that no other organisms utilize collagen in this manner is one of the indications that all animals arose from a common unicellular ancestor.Animals are a large and incredibly diverse group of organisms. Making up about three-quarters of the species on Earth, they run the gamut from sponges and jellyfish to ants, whales, elephants, and -- of course -- human beings. Being mobile has given animals the flexibility to adopt many different modes of feeding, defense, and reproduction. The earliest fossil evidence of animals dates from the Vendian Period (650 to 544 million years ago), with coelenterate-type creatures that left traces of their soft bodies in shallow-water sediments. The first mass extinction ended that period, but during the Cambrian Period which followed, an explosion of new forms began the evolutionary radiation that produced most of the major groups, or phyla, known today. Vertebrates (animals with backbones) are not known to have occurred until the Ordovician Period (505 to 438 million years ago).
Centrioles - Centrioles are self-replicating organelles made up of nine bundles of microtubules and are found only in animal cells. They appear to help in organizing cell division, but aren't essential to the process.
Cilia and Flagella - For single-celled eukaryotes, cilia and flagella are essential for the locomotion of individual organisms. In multicellular organisms, cilia function to move fluid or materials past an immobile cell as well as moving a cell or group of cells.
Endoplasmic Reticulum - The endoplasmic reticulum is a network of sacs that manufactures, processes, and transports chemical compounds for use inside and outside of the cell. It is connected to the double-layered nuclear envelope, providing a connection between the nucleus and the cytoplasm.
Golgi Apparatus - The Golgi apparatus is the distribution and shipping department for the cell's chemical products. It modifies proteins and fats built in the endoplasmic reticulum and prepares them for export to the outside of the cell.


Lysosomes - The main function of these microbodies is digestion. Lysosomes break down cellular waste products and debris from outside the cell into simple compounds, which are transferred to the cytoplasm as new cell-building materials.
Microfilaments - Microfilaments are solid rods made of globular proteins called actin. These filaments are primarily structural in function and are an important component of the cytoskeleton.
Microtubules - These straight, hollow cylinders, composed of tubulin protein, are found throughout the cytoplasm of all eukaryotic cells and perform a number of functions.
Mitochondria - Mitochondria are oblong shaped organelles that are found in the cytoplasm of every eukaryotic cell. In the animal cell, they are the main power generators, converting oxygen and nutrients into energy.
Nucleus - The nucleus is a highly specialized organelle that serves as the information and administrative center of the cell.
Peroxisomes - Microbodies are a diverse group of organelles that are found in the cytoplasm, roughly spherical and bound by a single membrane. There are several types of microbodies but peroxisomes are the most common
Plasma Membrane - All living cells have a plasma membrane that encloses their contents. In prokaryotes, the membrane is the inner layer of protection surrounded by a rigid cell wall. Eukaryotic animal cells have only the membrane to contain and protect their contents. These membranes also regulate the of molecules in and out of the cells.
Ribosomes - All living cells contain ribosomes, tiny organelles composed of approximately 60 percent RNA and 40 percent protein. In eukaryotes, ribosomes are made of four strands of RNA. In prokaryotes, they consist of three strands of RNA.