Flem.
It is called mucus.
The slimy secretions found in the lungs that help protect against dust and infectious substances are called mucus. Mucus traps particles and pathogens, preventing them from entering the respiratory system and facilitating their removal through ciliary action. This protective mechanism is essential for maintaining respiratory health.
Resin
You call that enzyme as 'Lysozyme'.
wet trash
Walleye are not what I would call slimy. Upon catching one, it is easy to hold the body and not have it slip out of ones hand. The Northern Pike, on the other hand is a very slimy fish.
Insulin is an endocrine hormone secreted by the pancreas. You could call it endocrine or pancreatic secretion.
The lungs are actually composed of a series of tubes. The first is the trachea, which brings air from your mouth and nose to inside of your chest (in an area known as the thorax). The trachea splits into two tubes called the bronchi, in which one of each goes to the actual tissue that we call the lungs. From there the bronchi split in a treelike fashion into smaller tubes called bronchioles, which in turn split again and again and get smaller and smaller. The terminal point of each bronchiole is a small sac like structure called an alveolus, which is the primary location of gas exchange within the lungs. Each alveolus is surrounded by a small capillary from the bloodstream which has a thin wall that is only one cell layer thick, allowing for easy exchange of oxygen and carbon monoxide molecules across the membrane.
The Pharynx is the part of the throat that is behind the mouth and nasal cavity and above the esophagus and the trachea, or the tubes going down to the stomach and lungs.
The trachea is often called the windpipe. The trachea (windpipe) is the tube that connects your mouth and nose to your lungs. It goes on to divide into the two airways (the right bronchus and the left bronchus, together called bronchi), which supply air to each lung. The trachea is in the neck and lies in front of your oesophagus (gullet), which food passes down. The trachea is about 10-16cm (5-7in) long and is made up of rings of tough, fibrous tissue (cartilage). You can feel these if you touch the front of your neck.
In anatomy, doctors refer to the tree-like branches of the lungs as the bronchial tree. This structure includes the main bronchi that branch from the trachea, which further subdivide into smaller bronchi and bronchioles, eventually leading to the alveoli where gas exchange occurs. The bronchial tree plays a crucial role in conducting air to the lungs and facilitating ventilation.
Nasal secretions are commonly referred to as "mucus" or "snot."